Final answer:
The scientist at the Kenai Peninsula in Alaska was monitoring seismic waves to analyze earthquake activity using seismographs. These instruments measure the arrival times of S- and P-waves to determine the distance to an earthquake's epicenter, which can also be used to monitor compliance with nuclear test bans.
Explanation:
The scientist shown at the Kenai Peninsula in Alaska was monitoring a station that measures seismic waves in order to analyze earthquake activity. Seismographs are sensitive instruments that detect and record the vibrations of the earth which are caused by seismic waves. These seismic waves are generated by various geological events, such as earthquakes or underground explosions, including those from nuclear tests.
Earthquakes are quantified according to the amount of energy they release, which is represented by a numerical magnitude (e.g., 2.1, 5.0, 6.7). The magnitude of an earthquake is a piece of quantitative data used to describe its size and potential impact. Advanced monitoring equipment can detect these magnitudes through the vibrations induced in the earth's crust.
To determine the distance to the epicenter of an earthquake, seismographs compare the arrival times of S- and P-waves, which travel at different speeds. With a precision of 0.100 seconds in measuring the arrival times and known speeds of S-waves at 4.00 km/s and P-waves at 7.20 km/s, scientists can calculate the distance to the quake's source with a specific level of precision. This principle is also used to detect underground nuclear tests and ensure compliance with test bans, although the accuracy can be affected by the variability in wave propagation speeds.
Which of the following statements about the European Union is false?
A.
No tariffs on trade are allowed between member nations.
B.
Together, the nations of the EU have the world’s largest economy.
C.
All people are free to move from country to country to find work, with few restrictions.
D.
Every nation uses the euro as its currency.
The following statements about the European Union is false?
D.
Every nation uses the euro as its currency.
Explanation:
The European Union is a political and economic union of 27 member states that are located primarily in Europe. Its members have a combined area of 4,233,255.3 km² and an estimated total population of about 447 million.Stable and sustainable development. The objective is to ensure Europe's sustainable and steady development. It means balanced economic growth and stable prices. The European Union seeks to create a competitive market economy which takes into account people's wellbeing and social needs.The EU countries are: Austria, Belgium, Bulgaria, Croatia, Republic of Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain and Sweden.The European Union is set up with the aim of ending the frequent and bloody wars between neighbours, which culminated in the Second World War. The EU has been a success in ensuring cooperation between its member states. Its institutions facilitate diplomatic negotiations in a rule-based and efficient manner.Answer:
D
Explanation:
took the test
The side of the moon that faces the sun is always illuminated, but that side does not always face Earth. The different phases of the moon are caused by the moon's near 28-day _____.
The phases of the moon are caused by a lunar cycle, a nearly 28-day cycle that the moon takes to orbit the earth. The changing angle of the Sun's illumination on the Moon's surface as it orbits the earth is what results in the changing phases of the moon that we see from earth.
Explanation:The moon's phases that we observe from Earth are dictated by the Moon's near 28-day cycle called the lunar cycle. This cycle is the period it takes for the moon to orbit the Earth, also known as its period of revolution. Since the Moon's period of revolution is equal to its period of rotation, it always keeps the same face towards Earth. The changing angle of the Sun's illumination on the Moon because of this revolution gives us the changing Moon phases.
During the lunar cycle, we see different amounts of the Moon's illuminated side. For example, during the full moon phase, the side of the Moon facing the Earth is fully illuminated by the Sun and is thus completely visible. At new moon, the Moon is between the Earth and the Sun, and the side of the Moon facing the Earth is not visible to us because it is not illuminated by the Sun. The gradually increasing and decreasing illumination of the Moon as seen from Earth is what causes the difference in appearance of the Moon's phases.
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What happened during the camp David accords
Answer:
B.
Explanation:
Egypt agreed to recognize Israel, and Israel returned the Sinai Peninsula.
Egypt agreed to the recognize Israel, and the Israel returned to the Sinai Peninsula. Thus the option B is correct.
What is the Camp David accords ?David camp is an agreement between the Egypt and Israel which is signed on the sept 17, 1978 lead to the agreement of the peace treaty within these two nations.
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12. Most people in China work in ?
Answer:Electronic information. Known as the sunrise industry, electronic information is an emerging high-tech industry.
Triangle KLP KLP is cut from parallelogram KLMN KLMN and moved to its right-hand side. What are the dimensions of the resulting rectangle LMQP LMQP ?
Answer:
b) Length d, height c
Explanation:
The question is incomplete. The complete question is stated below:
Triangle KLP is cut from parallelogram KLMN and moved to its right-hand side. What are the dimensions of the resulting rectangle LMQP ?
a) length d, height a
b) length d, height c
c) length d - b, height c
b) length d + b, height c
The diagram in the question has been attached to the answer.
SOLUTION:
The parallelogram KLMN had dimension base d and height c.
When right angled triangle KLP is cut from it, we are left with a right-angled trapezoid NPLM. Attaching a right angle triangle KLP to the right of the trapezium gives rectangle LMQP as
Right angled triangle KLP = Right angled triangle NMQ.
The dimension of the resulting rectangle LMQP is Length d, height c.
The diagram for the solution is sent as attachment.
The resulting rectangle LMQP has dimensions of length LQ = KL + LM and width LP = KM.
Since triangle KLP is cut from parallelogram KLMN and moved to its right-hand side, the resulting figure is a rectangle LMQP. The length of the rectangle LMQP is the sum of the lengths of KL and LM, which are equal because KLMN is a parallelogram, so LQ = KL + LM = 2 [tex]\times KL \)[/tex]. The width of the rectangle LMQP remains the same as the width of the parallelogram, which is the length of KM, so LP = KM. Therefore, the dimensions of rectangle LMQP are [tex]\( 2 \times KL \)[/tex] by [tex]\( KM \).[/tex]
What is the best explanation for how Western culture spread around the world?
a. It spread through imperialism, migration, trade, and technology
b. It spread mainly through trade and technology.
c. It spread through migration in addition to imperialism.
d. It spread mainly through imperialism.
Answer:
a
Explanation:
because migration i was spread because of the gold rush which also broth more trade and technology with it. Hopes this helps. Thank you
Western culture spread around the world through imperialism, migration, trade, and technology. Thus, option 'A' is the correct option.
How did Western culture spread around the world?The legacy of social norms, ethical ideals, conventional traditions, religious systems, political systems, artefacts, and technology of the Western world is known as Western culture, often referred to as Western civilisation, Occidental culture, or Western society. The phrase refers to nations and civilizations outside of Europe whose history has endured significant contact with Europeans through immigration, colonialism, or impact.
Greco-Roman, Germanic, and Christian cultures had the most profound effects on Western civilization. Numerous artistic, philosophical, literary, and legal traditions and topics define Western civilization. Since at least the 4th century, both Judaism and Christianity—particularly the Roman Catholic Church—have had a significant influence on the development of Western civilisation.
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Why was the Soviet Union confident about its power and status up until the early 1970s
In 1985, Mikhail Gorbachev came to power in the Soviet Union and set out to bring the country out of crisis.
His two most important reforms were called Glasnost and Perestroika .
Explanation:
Glasnost or transparency improved freedom of expression
in following ways:
● freedom of press
● access to Western press
● the creation of political unions that opposed communism
● banned books that challenged Soviet history or
Communist rule were published in large editions
● dissidents were released from prison
● greater religious tolerance
● freedom to travel to Western countries
perestroika or restructuring of the government and economy led to
changes in the following ways:
● farmers were allowed to sell
goods on the free market
● appointed new members to the
Secretariat and reduced the
size of the bureaucracy
● supported limited private
ownership
If forester John walks 18 paces in a chain, and he walks 50 paces between point A and B, how many feet has forester john walked?
Answer:
183.5 ft
Explanation:
A chain is a unit of length and it has the length of 66 ft. To calculate the value of each pace .
we have to get the value of each pace by dividing the length of the chain by the pace.
Therefore,
each pace = length of chain/18
each pace = 66/18
each pace = 3.67 ft
The value of each pace = 3.67 ft
How many ft has john walked , that is from point A and B.
He walks 50 paces
Therefore,
each pace is 3.67 ft that means 50 paces will be
50 × 3.67 ft
183.5 ft
What effective practice do you have in place to lessen Earth pollution?
geography! help! will mark brainliest! please write the answer in your own words please thank you! due today!!
answer
women in america have rights
Explanation:
Saudi Arabia is an extremely male dominated culture with strict adherence to tradition and the religious laws of Islam, called Sharia. “Islam provides the framework for a unique form of government which continuously strives to raise the living standards of its people while cherishing the religious, ethnic, and moral values of the Kingdom’s diverse tribes” (Luna 9). Sharia guidelines maintain that an unmarried woman is the ward of her father, a married woman is the ward of her husband, and a widowed woman is the ward of her sons. There is no concept of a single women, alone in Saudi Arabia. Women must ask permission from their male guardians to do virtually anythin
Saudi Arabia Today
There is no denying that women in the Unites States have made great strides towards full gender equality, but there are still things to be done. In Texas alone, the past year has seen Senate controversies on both pay equality and reproductive rights.
In June 2013, Rick Perry vetoed a bill meant to prevent wage discrimination against women. The Equal Pay Bill or HB 950 would bring Texas state law in line with the federal Lily Ledbetter Fair Pay Act, which makes it easier for women to sue employers over wage discrimination.
Wendy Davis successfully completed an 11 hour filibuster to defeat a controversial anti-abortion bill aimed at severly cutting funding for abortion services across Texas. However, Rick Perry called a 2nd Special Session in order to get the bill passed. If passed it would effectively limit women's reproductive rights and options.
There has been some change in women's roles and rights in Saudi Arabia over the last fifty years. However, it must be noted that Saudi women do not want to become "westernized," but they do want some of the freedoms and rights that American women and women all over the world have been provided.
Saudi Arabia vs. The United States
Females
Global Women's Rights
Women's Rights in the United States
What They Cannot Do and What they Want to Change
Timeline of Women's Rights in the United States
Housekeeping and child care are the primary female function
Typically do not hold political office
Most do not receive a secondary education
Little to no power regarding major household decisions .
Women right's are different around the globe, but the rights of Saudi Arabia and the United States are almost polar opposites. Women's rights have been an issue in the USA since the 1800s, while Saudi Arabian women have only recently begun their fight for equality from the oppression of the strict Islamic laws under which they live. Women's gender roles play a significant role in the rights women are given. In Saudi Arabia, women are seen as subordinate to men and therefore few rights are given. However, some Saudi women reject the push for more rights, stating "Saudi women are the luckiest in the world and Saudi Arabia is the closest thing to an ideal and pure Islamic nation. We don't want imported Western values to destroy that" (Ambah)
Saudi Arabia’s unique mix of the traditional and modern present a distinct set of problems for women's rights. Saudi Arabia’s economy has evolved very quickly in the last fifty years, from a tribal community to a world power, but their culture has not had time to catch up. Women’s rights must be addressed in order for real and effective change to take place, but the current laws oppress them and limit their involvement in society.
Place each country into the correct category.
Axis Powers
Utd States
G many
Japan
France
Italy
Great Britain
Soviet Union
What has most likely allowed people to have a better understanding of the landscape of Mars in recent times?
improved technology
more limited methods
increased interest in space
movies and books about Mars
Answer:
it's d
Explanation:
Surface winds typically blow at an angle to isobars on a weather map, while winds aloft move air in a direction nearly parallel to the isobars. Which of the following factors best explains why surface winds move differently than winds aloft?a) africtionb) humidityc) clear air turbulenced) the pressure-gradient force
Answer:
The correct answer is A. Friction
Explanation:
Surface winds typically blow at an angle to isobars on a weather map, while winds aloft move air in a direction nearly parallel to the isobars. FRICTION is the factor that best explains why surface winds move differently than winds aloft.
Friction is a force that holds back the movement of a sliding object. It is also the resistance to motion of one object moving relative to another. It is not a fundamental force, like gravity or electromagnetism. Instead, scientists believe it is the result of the electromagnetic attraction between charged particles in two touching surfaces.
It is also the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.
Friction is the factor that best explains why surface winds move differently than winds aloft.
Explanation:The factor that best explains why surface winds move differently than winds aloft is friction. Friction between the wind and Earth's surface causes surface winds to slow down and change direction, resulting in an angle to isobars on a weather map. In contrast, winds aloft are not affected by surface friction and therefore move in a direction nearly parallel to the isobars.
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Complete question
Surface winds typically blow at an angle to isobars on a weather map, while winds aloft move air in a direction nearly parallel to the isobars. Which of the following factors best explains why surface winds move differently than winds aloft?
a) friction
b) humidity
c) clear air turbulence
d) the pressure-gradient force
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which three processes work together in the geologic cycle?
A. the hydrologic cycle, sea-floor spreading, and precipitation
B. lithification, sedimentary rock formation, and metamorphism
C. the organic cycle, the inorganic cycle, and stratigraphy of.
D. the hydrologic cycle, the rock cycle, and the tectonic cycle
Answer:
D. the hydrologic cycle, the rock cycle, and the tectonic cycle
Explanation:
The geologic cycle is a cycle made of the complex interactions of the earth's core fundamentals like the tectonic plates, rock cycles along with the hydrological cycles, and the biological cycling of the elements. In short, the process by which the landforms are shaped and balanced by the internal and the external forces i.e endogenetic and exogenetic force that acts on the landscape and transform it into mountains, plains, and plateaus, etc. Through the release of the heat from the interior of the plant to the surface by the convection, geothermal radiation. And later is recycled back to maintain the isostatic equilibrium of the planet.Where are active or extinct volcanoes least likely to be found ?
Answer:
not near the ring of fire
Explanation:
not near the ring f fire
Answer:
Ring of Fire
Explanation:
Because of a limited freshwater supply, Dubai has to maintain a large-scale desalination process. How does the desalination process affect the environment? A. It causes aquifers to dry up. B. It causes air pollution. C. It makes oil spills more likely. D. It contributes to water salinity problems.
Answer: its b
Explanation:
Final answer:
The desalination process in Dubai primarily contributes to water salinity problems due to the discharge of highly saline wastewater, although it can also cause air pollution indirectly if the energy used is from fossil fuels.
Explanation:
The large-scale desalination process utilized in Dubai to address the limited freshwater supply has significant environmental impacts. The most pertinent one, in relation to the options provided, is that it contributes to water salinity problems. Desalination plants typically discharge highly saline wastewater back into the ocean, which can lead to an increase in the local seawater salinity, affecting marine ecosystems. The process itself is quite energy-intensive and can lead to air pollution, depending on the source of the energy used, but this is not typically considered the primary environmental effect. The options of causing aquifers to dry up or making oil spills more likely are not direct consequences of the desalination process.
Kevin uses 32 ounces of dried apples and 18 ounces of dried cranberries to make a fruit snack. He plans to sell the snack in 1 2 -pound containers. How many containers will he fill? Will any fruit snack be left over? Kevin will fill containers. There left over.
Kevin will fill 6 containers with his fruit snack mixture, and there will be 2 ounces of the mixture left over after filling these containers.
Kevin uses 32 ounces of dried apples and 18 ounces of dried cranberries to make a fruit snack. He plans to sell the snack in 1/2-pound containers. A pound is equivalent to 16 ounces, so a 1/2-pound container would hold 8 ounces of fruit snack. To calculate how many containers Kevin will fill, we first find the total amount of fruit snack by adding the weight of the dried apples and cranberries:
32 ounces (apples) + 18 ounces (cranberries) = 50 ounces (total fruit snack)
Next, we divide the total amount of fruit snack by the container size to find the number of containers he can fill:
50 ounces \/ 8 ounces per container = 6.25 containers
Since Kevin cannot have a fraction of a container, he can fill 6 complete containers, and there will be a remainder. To find the leftover amount, we calculate:
50 ounces - (6 containers x 8 ounces) = 2 ounces left over
Therefore, Kevin will fill 6 containers, and there will be 2 ounces of fruit snack left over.
Which agent of erosion causes the sandblasting of bedrock
Answer:
Wind
Explanation:
Wind is an agent of erosion which causes the sandblasting of bedrock. Sandblasting is a stream of sand projected by compressed air. It is a high velocity blast of air or steam carrying sand to etch glass or to clean stone or metal surfaces.
In response to rising atmospheric conditions, wind is caused by the movement of gas molecules in the Earth's atmosphere. The winds act like a pneumatic scouring agent and the top layer of fine soil is dislodged and transferred to undesirable places as a result.
Answer:
Wind
Explanation:
Which agent of erosion causes the sandblasting of bedrock
glaciers
wind
running water
wave action
Gravity, water, wind, and glacier are things that can erode material
Sandblasting is process of smoothing and cleaning a hard surface by forcing solid particles across that surface at high speeds using compressed air and is the most common method used for surface preparation; they can occur naturally, usually as a result of particles blown by wind causing aeolian erosion, or artificially
What mountain range forms the italian peninsula’s northern border?
I think the answer is Alps.
The alps is the mountain range that is in northern Italy.
Dendrochronology involves dating of historic and geologic events through the study of: a.growth layers in shells. b.oxygen isotope profiles in glacial ice. c.remnant magnetism in iron-rich minerals. d.annual growth rings in trees.
Answer:
D. Annual growth ring in trees.
Explanation: Dendrochronology is the study of the growth of tree rings. In each growth season, trees create a new ring that reflect the weather condition of that growth season. When hundreds of tree rings are put together, it tells us more about the environmental condition of the time in a specific year of the growth of the tree and the age of the tree at felling.
How did Indus River Valley civilizations use irrigation techniques?
Farmers used irrigation to protect fields from land overuse.
Farmers used irrigation to offset flooding and protect crops.
Famers used irrigation to manage the water supply for crops.
Famers used irrigation to create land for better roads and houses.
Answer:
The correct answer is the third statement.
Explanation:
This is because the first and last statements are completely incorrect as irrigation systems had to do with routing water from streams and lakes, into farms in order to hydrate plants. The second answer is technically correct in my opinion, because once flood season came farmers used irrigation lines to re-route water to reservoirs or other places besides their farms. Although, this was not the main purpose of irrigation systems.
In the Indus River Valley civilizations, famers used irrigation to manage the water supply for crops, Thus, the correct answer is the third statement.
What is irrigation ?Irrigation is the application of controlled amounts of water to land to aid in the growth of crops, landscape plants, and lawns. Irrigation has been an important aspect of agriculture for over 5,000 years, and many cultures around the world have developed it.
The first and last statements are completely incorrect as irrigation systems as irrigation is routing water from streams and lakes, into farms in order to hydrate plants. Once flood season came farmers used irrigation lines to re-route water to reservoirs or other places besides their farm. The main purpose of the irrigation was to to manage the water supply for crops.
Therefore, the third statement describes how Indus River Valley civilizations use irrigation techniques.
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Who created the modern model of the solar system by discovering that the planets move in eclipse
Answer:
I do believe that it was Johannes Kepler
Explanation:
Answer:
Kepler derived the three laws of planetary motion which changed the model of the Solar System and the orbital path of planets.
Explanation
The historical models of the Solar System began during prehistoric periods and is updated to this day. The models of the Solar System throughout history were first represented in the early form of cave markings and drawings, calendars and astronomical symbols. Then books and written records then became the main source of information that expressed the way the people of the time thought of the Solar System.
New models of the Solar System are usually built on previous models, thus, the early models are kept track of by intellectuals in astronomy, an extended progress from trying to perfect the geocentric model to eventually using the heliocentric model of the Solar System. The uses of the Solar System model began as a time source to signify particular periods during the year and also a navigation source which is exploited by many leaders from the past.
Astronomers and great thinkers of the past were able to record observations and attempt to formulate a model that accurately interprets the recordings. This scientific method of deriving a model of the Solar System is what enabled progress towards more accurate models to have a better understanding of the Solar System that we are in..
In 1609, Johannes Kepler, using his teacher's (Tycho Brahe) accurate measurements, noticed the inconsistency of the geocentric model and confirmed the heliocentric model is a more accurate and consistent model. Kepler derived the three laws of planetary motion which changed the model of the Solar System and the orbital path of planets. The three laws of planetary motion are:
All planets orbit the Sun in elliptical orbits and not perfectly circular orbits.
The radius vector joining the planet and the Sun has an equal area in equal periods.
The square of the period of the planet (one revolution around the Sun) is proportional to the cube of the average distance from the Sun.
The third law explains the periods that occur during the year which relates the distance between the Earth and the Sun.
Galileo's discoveries
With the help of the telescope providing a closer look into the sky, Galileo Galilei proved the heliocentric model of the Solar System. Galileo observed the phases of Venus's appearance with the telescope and was able to confirm Kepler's first law of planetary motion and Copernicus's heliocentric model. Galileo claimed that the Solar System is not only made up of the Sun, the Moon and the planets but also comets. By observing movements around Jupiter, Galileo initially thought that these were the actions of stars. However, after a week of observing, he noticed changes in the patterns of motion in which he concluded that they are moons, four moons.
Newton's interpretation
After all these theories, people still did not know what made the planets orbit the Sun. Until the 16th century when Isaac Newton introduced The Law of Universal Gravitation. This theory claimed that between any two masses, there is an attractive force between them proportional to the inverse of the distance squared.
_________ characterize the activity of glaciers and their impact on the landscape?
Answer:
Explanation:
The follwing characterize the activity of glaciers and their impact on the landscape:
Glaciers are capable of moving large amounts of sediment.
Glaciers are capable of oversteepening slopes.
Glaciers can disrupt the hydrologic cycle
Glacial activity can change the position of sea level relative to present conditionscharacterize the activity of glaciers and their impact on the landscape.
You turn over a rotting log in a central Texas forest. Which of the following groups are you LEAST likely to find represented among all the animals you could find beneath this log?
a. Nematoda
b. Mollusca
c. Annelida
d. Echinodermata
e. Arthropoda
Which of the following statements best describes how Europeans have changed the land?
A. They have built underground waste facilities.
B. They have used the land to grow resources.
C. They have planted trees to produce forests.
D. They have given land back to the sea.
Final answer:
Europeans have altered the landscape primarily by using land to grow resources, which has led to significant environmental changes including deforestation and increased pollution, challenging the balance between development and biodiversity.
Explanation:
The European landscape has been significantly altered by human activity over the centuries. The correct statement that best describes how Europeans have changed the land is B. They have used the land to grow resources. Europeans utilized the fertile regions like the North European Lowland for agriculture, which greatly impacted the natural environment. This agricultural expansion, along with industrialization during the Industrial Revolution, led to deforestation and environmental degradation. Increased industrial activities and population growth have exacerbated issues such as acid rain, which has damaged forests and fish populations, especially in northern Europe. Moreover, the pursuit of modernization has contested the balance between economic development and maintaining biodiversity.
Final answer:
Europeans have extensively transformed their landscapes, largely using the land to grow resources which has led to environmental concerns such as acid rain and deforestation, impacting biodiversity and ecological balance.
Explanation:
Which of the following statements best describes how Europeans have changed the land?
The most accurate description of how Europeans have changed the land, considering the historical context of industrialization and urbanization, is that B. They have used the land to grow resources. European countries have extensively utilized their diverse landforms, including the North European Lowland, for agriculture to grow resources. The increased demand on the environment due to population growth has led to various environmental concerns, such as acid rain and deforestation. Additionally, pollution and industrial activities have contributed to the environmental degradation and loss of biodiversity.
This tragic earthquake was not the strongest, but was certainly the deadliest earthquake in history: ~ 830,000 killed. Most of the victims were in their homes that were carved out of the loess covered hillside. The soft soil made caves practical homes for many, but they collapsed easily during the shaking___________.
Answer:
Shaanxi, China
Explanation:
Earthquakes occurred in the china known as the deadliest earthquakes in the record of human history and about 830,000 people lost their lives occurred in 23 Jan 1556, more than 97 provinces were affected. An area of 840 km was destroyed and most of the population living in artificial caves in loess cliffs were entirely collapsed causing many casualties. The epicenter as located around the Wei River valley and in places 20 meters deep crevices were created. The earth had a magnitude of 8.1 on the Richter scale.Pyroclastic flows primarily contain pumice, vesicular pyroclastic material, and ________.
a. ultramafic rock debris
b. a cloud of low-density hot expanding gases
c. low viscosity
d. lava flows volcanic mudslides called lahars
Answer:
d. lava flows volcanic mudslides called lahars
Explanation:
Mudflows of volcanic eruptions are the most dangerous, and are called lahars. A lahar is a type of mudflow or debris flow composed of a slurry of pyroclastic material, rocky debris, and water.
Pyroclastic flows primarily consist of pumice, vesicular pyroclastic material, and a cloud of low-density hot expanding gases. These gases allow the flow to move at high speeds, causing extensive damage.
Explanation:Pyroclastic flows are a fast-moving current of extremely hot gas and volcanic matter, which move away from a volcano at high speed, often due to a volcanic eruption. They primarily contain pumice and vesicular pyroclastic material, and additionally, according to the options provided, they contain b. a cloud of low-density hot expanding gases
Pumice and pyroclastic material are solid fragments ejected during an eruption, while the hot expanding gases create a cloud-like state causing the flow to 'float' down the mountain at high speeds, often resulting in extensive damage.
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The Alps mountain was created by recent tectonic activity
true
ОR
false
Answer:
Orogeny took place continuously and tectonic subsidence has produced the gaps in between. The Alps arose as a result of the collision of the African and Eurasian tectonic plates, in which the Alpine Tethys, which was formerly in between these continents, disappeared.
so it would be true.
Explanation:
As understood by modern geologists, the principle of uniformitarianism implies that ____________.
a. the Earth has always had the same basic appearance that it has today.
b. igneous, metamorphic, and sedimentary rocks are uniformly mixed throughout the crust.
c. physical processes observed today (such as erosion and volcanic eruptions) have been active in the past at approximately the same rates.
d. physical processes observed today (such as erosion and volcanic eruption) occurred much more rapidly in the past, quickly sculpting the Earth’s surface.
The correct answer is c. physical processes observed today (such as erosion and volcanic eruptions) have been active in the past at approximately the same rates.
This is because the principle of uniformitarianism, as understood by modern geologists, states that the same natural processes that operate in the present have been occurring throughout Earth's history at relatively consistent rates.
Option a, stating that the Earth has always had the same basic appearance that it has today, is incorrect because the Earth's appearance has changed significantly over geological time due to processes such as erosion, tectonic movements, and climate changes.
Option b, stating that igneous, metamorphic, and sedimentary rocks are uniformly mixed throughout the crust, is also incorrect as different types of rocks are distributed unevenly in the Earth's crust based on geological processes and history.
Option d, Uniformitarianism suggests that geological processes have occurred over vast periods of time at relatively constant rates. While major events like asteroid impacts or catastrophic volcanic eruptions have occurred in Earth's history, the overall shaping of the Earth's surface is believed to have taken place gradually through the same processes we observe today
According to the geocentric view, everything in the heavens had to go around the Earth, which was the center of the universe. What objects did Galileo discover with his telescope that clearly didn't go around the Earth?
a) ring around the Sun
b) moons around the planet Jupiter
c) Pluto
d) the Earth's Moon
e) stars in the Milky Way that just kept going in a straight line
Answer:
b) moons around the planet Jupiter
Explanation:
Galileo was the first astronomer to use the telescope to study the heavens and his observations made him conclude that earth was not at the centre of the universe and proved the Ptolemaic calculation of the earth at the centre of the universe wrong. His discovery of the moon creators and the solar storms and the moons spinning around the Jupiter which did not go around the earth.