Answer:
Option (A)
Explanation:
The cretaceous period formed the last period of the Mesozoic era, marked by the occurrence of some distinct major events, and it began about 145 million years ago and ended by about 65 million years ago. The name Cretaceous is actually derived from the Latin word 'Creta' which means “chalk”. Chalk usually refers to the white colored, soft, powdery limestone rock that is primarily comprised of fossil shells. These are basically dominated by the calcite minerals.
By the end of this period, the dinosaurs were completely wiped out from the earth and the flowering plants started to evolve after the mass extinction event, which is commonly known as the Cretaceous-Tertiary boundary (K-T boundary).
Thus, the name Cretaceous was given because during this time period, there was abundant deposition of marine limestones (chalk), depicting that the sea level was comparatively higher than the present day.
Hence, the correct answer is option (A).
Which stadium features a number of parking garages that are usually less than half full on game day and may need to be torn down so that the land can be reused for hotels or other purposes?
Yankee stadium have features of a number of parking garages that are usually less than half full on game day and may need to be torn down so that the land can be reused for hotels or other purposes.
Explanation:
Normally on the day of the game, the parking lots of the stadium are full but the stadiums whose parking lots are not even half full even on the day of the game are known as the yanked stadiums.
Some stadiums even have the prospects of changing the use of land of the parking lot. The other prospects of using the lands of the parking lot are like making a hotel on that land or for any other purpose.
Lava is
a. always produced during any volcanic activity.
b. molten rock that cools and hardens on Earth's surface.
c. the most life-threatening volcanic product of any eruption.
d. all the same chemical composition, whether it is rhyolite or basalt
Answer: molten rock that cools and hardens on Earth's surface.
Explanation: Lava is liquid rock that are thrown to the Earth's surface by the action of a volcanic eruption. On cooling a Lava form an igneous rock. The Lava are found in the Earth's crust naturally but are thrown to the surface during a volcanic eruption. Lava has the ability to travel long distances during an Eruption.
The collision-coalescence process generates big raindrops that sweep up smaller cloud droplets, thus growing bigger. Potentially, they grow so large that frictional drag from the surrounding air causes the raindrop to break apart into a larger number of smaller dropletsa. True.b. False.
Answer:
True
Explanation:
The collision coalescence theory states that the individual droplets end to sweep into the big droplets and these droplets are suspended in the air and will interact in the air by the colliding and bouncing off to form a larger water droplet. This term is used on the metrology and they occur when the air is too warm for the formation of the ice crystals. This a dominating process for the precipitation of the warmer regions and the temperature is about 15 °C as some cloud droplets become big enough they tend to fall down also since the bogger falls down more easily than the smaller ones. Factors that promote the collision and coalescence to take place is the thicker clouds, strong updrafts and the differences in the drop size.If phosphorus concentrations were to suddenly increase in a marine ecosystem, which of the following would likely occur?
A) no change in the rate of primary productivity
B) increased primary productivity
C) decreased primary productivity
Answer:
C
Explanation:
decreased primary productivity due to dangerous amount of phosphorus
Identify the true statement.
a. A. The Antarctic ice sheet has been calving off huge icebergs over the last few decades.
b. Regions covered by glacial ice are termed periglacial environments. c. The expansion of ice sheets at the end of the Pleistocene caused a glacial rebound in northern Canada.
d. Glaciers move by basal sliding as friction between the ice and its substrate increases.
Answer:
Option (A)
Explanation:
Antarctica is a southern continent mainly covered with ice. A large amount of ice has been accumulated in this region in the geological past, but over the last few decades, the icebergs of this region are continuously affected due to the rapid increase in global industrialization. These increasing industries are responsible for the emission of a large amount of toxic gases such as carbon dioxide, methane, hydrogen sulfate. Due to this rapid increase in the amount of carbon in the atmosphere, the global temperature of the earth simultaneously increased, resulting in the melting of the ice-bergs at Antarctica.
Thus, the correct statement is option (A).
Put Antarctica next to the explorer associated with it. Put Australia next to the explorer associated with it. Put New Zealand next to the explorer associated with it. Willem Janszoon Abel Tasman Fabian Gottlieb von Bellingshausen James Cook Henryk Bull Roald Amundsen
Answer:
Australia: Willem Janszoon and James Cook were explorers of Australia.
New Zealand: Abel Tasman and James Cook explored New Zealand.
Antarctica: Fabian Gottlieb von Bellingshausen, Roald Amundsen and Henryk Bull explored Antarctica.
Answers:
New Zealand: Abel Tasman
Australia: Willem Janszoon, James Cook,
Antarctica: Fabian Gottlieb von Bellingshausen, Henryk Bull,
Roald Amundsen
*James Cook is also known for making detailed maps of the Hawaiian Islands, Australia, and the first recorded circumnavigation of New Zealand.
However depending on what lesson you have he's usually put under Australia.
The igneous rock gabbro most likely formed from molten material that cooled. True or false
Answer:
True
Explanation:
Gabbro is an igneous rock which is formed by the gradual cooling of molten magma below the surface of the earth. It is an intrusive rock which means that its cooling and solidification was done below the surface of the earth. Gabbro should not be confused for basalt which has similar chemical compositions as gabbro. The only difference being that basalt has a smaller grain size which is as a result of its quick cooling and solidification process above the earth's surface (extrusive rock).
You have a beach house on the east coast of Florida. The main wave source is to the northeast. Your neighbor to the north of you is having problems with beach erosion and storm waves often come under his house. So he decides to build a groin and he tells you it is for the benefit of the neighborhood. What should you respond to his comment?
You respond by saying "A groin can be successful in stabilizing a beach on the updrift side, but erosion tends to be aggravated on the downdrift side, which is deprived by the groin structure of replenishment by drifting sand." Then suggest to your neighbor that to counteract this tendency, multiple groins should be built in so-called groin fields, to stabilize a larger beach area.
Read the following scenario and answer the questions below. Early People and Agricultural Beginnings Long ago, two sisters were talking as they returned from their morning trip to collect mushrooms, seeds, berries, and green leaves for the day's meals. The younger woman was watching the progress of a small rabbit as it hopped across the path and toward the clan's trash midden (refuse heap), where broken tools (made of bone, stone, or shell) were tossed, and where discarded food was thrown. She noticed the rabbit stop and begin nibbling at the many new, green shoots sprouting across one side of the midden. She walked over to look, and she saw that some of last year's discarded dried fruits were growing. Surprised and interested, she called her sister over to discuss this find. The next step in this story would likely be that this woman and her sister ________.
a. began to seek out old middens to find and eat the things growing there
b. began to save, sort, and name different types of seeds
c. started a full-scale garden, digging the soil and enriching it with food wastes
d. began to deliberately plant seeds near their village to make food gathering easier in the future
e. began to trade seeds with people from other villages
Final answer:
The next step in this story would likely be that the woman and her sister began to deliberately plant seeds near their village to make food gathering easier in the future, option D is correct.
Explanation:
The next step in this story would likely be that this woman and her sister began to deliberately plant seeds near their village to make food gathering easier in the future. They observed that discarded seeds from their trash midden were growing into new plants, and realized that they could intentionally plant seeds to ensure a more reliable food supply. This practice of deliberate planting is one of the key factors in the development of agriculture.
During which event were thousands of Cherokees, Creeks, Seminoles, and others resisting assimilation were forced to migrate from their ancestral homes westward to a specially designated Indian Territory (now Oklahoma)___________.
Answer:
The event is known as the Trail of Tears
Explanation:
In 1830, congress passed the Indian Removal Act. This law allowed then-president Andrew Jackson to remove the native indian populations of the Southeastern United States, to a new territory in Oklahoma, known as the Indian Territory.
Over 30thousand people belonging to the tribes mentioned in the question were obliged to abandon their homelands, and move westward. During this event, a lot of them died of diseases and starvation. This sad reality is the reason why it has come to be known as the Trail of Tears.
What process underneath the earth’s crust do scientists think causes the movement of earth’s plates?
Answer:
Convection currents.
Explanation:
This is caused by the huge temperature and density differences between plates. The hotter they get, the lighter they are and they rise. On the opposite, colder material is more dense, and therefore, it sinks.
In the deepest parts of the earth's mantle, heat is intense as its close to the core, there, great rock mass is heated, partially melted, and it starts to slowly rise to the surface, this creates an ascendent current. At the same time, near the litosfere, great amounts of cold rock and mass sink back to the mantle, creating a descendent current. This continuous and never ending process is what causes the plate movement.
The theory proposed by Robert Braidwood, arguing that agriculture arose in areas where the wild ancestors of domesticated wheat and barley grew, and resulted from human efforts to increase the productivity and stability of their food base, is the: ________
Answer:
Hilly flanks theory
Explanation:
HILLY FLANKS THEORY is the theory proposed by Robert Braidwood, arguing that agriculture arose in areas where the wild ancestors of domesticated wheat and barley grew, and resulted from human efforts to increase the productivity and stability of their food base.
He proposed and suggest in 1948, that agriculture began in the hilly flanks of the Taurus and Zagros mountains, where the climate was not drier, as Childe had believed, and that fertile land supported a variety of plants and animals amenable to domestication.
This body of water is named for the subcontinent that lies on the continent to the north.
Answer:
Indian ocean
Explanation:
Indian ocean is the water body which named after the subcontinent lies in north to it. Indian subcontinent includes:- India, Pakistan, Bhutan, Bangladesh, Nepal and Afghanistan, Maldives, Sri Lanka. Once the continent was the piece of Gondwanaland and now termed as Indian subcontinent. The ocean southern to Indian subcontinent is named as Indian ocean because of this subcontinent.
Answer:
Indian ocean
Explanation:
Why does the Moon have a layer of powdery "soil" on its surface? a) The soil exists because the Moon accreted from powdery material after a giant impact blasted Earth. b) The soil is the result of the same processes that make powdery sand on Earth. c) Volatiles escaping from the Moon's interior bubble upward and make the soil. d) It's the result of gradual erosion by micrometeorites striking the Moon. e) Large impacts shattered lunar rock to make this soil.
Answer:
e) Large impacts shattered lunar rock to make this soil.
Explanation:
The soil is formed by material thrown out of the craters formed by the impacts of meteors on the lunar surface.
Below is a photo of the powdery lunar soil,
Answer:
e) Large impacts shattered lunar rock to make this soil.
Explanation:
How would you characterize Japan's openness to other countries today?
A.Japan is more open than in the past and involved in regulated trade.
B.Japan is open to its current trade relationships but avoids new ones.
C.Japan is very open and involved in free trade.
D.Japan is not very open and restricts most trade.
Answer:
A.Japan is more open than in the past and involved in regulated trade.
Explanation:
The japan is a centralized and market-oriented economy and is the second-largest in the world and is highly efficient and competitive in the areas of the international trade and is less towards the result distribution and the services sectors.Along with many other governmental reforms that began in 1994, the electrical plant just outside Soweto was closed in 2000, and other plants were brought into use. Some parts of Soweto were then wired for electricity. It is estimated, however, that only about 30% of the more than 1.2 million black inhabitants have electricity in their homes; the remainder either cannot afford the costs involved or live in areas that have no electrical access. These inhabitants probably use ________ for fuel.
Hi! The correct answer is wood and coal.
Explanation:
The majority of the inhabitants of Soweto live with candles as lighting and kerosene as heating. In homes that do not have electric power, they light bonfires outside their homes with old chairs or wood that look for in landfills. To cook and provide warmth to the whole family.
Early mapmakers thought continents might have moved based on their observations of
Answer:
Matching Coastal Lines of Continents
Explanation:
The alignment of coastal lines of different continents helped the early map makers to formulate a thought that continents might have moved. For example, observing the coastlines of western Africa and eastern South American continents suggests the likelihood of this thought. Although taking a closer look at these coastlines, one can observe some irregularities in their alignment, but these irregularities can be explained away by the erosion of these coastal lines over the years.
Early mapmakers suspected that continents might have moved based on their similar shapes. This observation led to the theory of continental drift by Alfred Wegener, which suggests that all continents were once part of a supercontinent called Pangaea.
Explanation:Early mapmakers, also known as cartographers, suspected that continents might have moved based on certain observations. The most notable was the similarity in shapes of different continents, particularly the east coast of South America and the west coast of Africa. It appeared as though the continents could fit together like pieces of a puzzle, which suggested they may have once been connected. This observation eventually led to the development of the theory of continental drift by Alfred Wegener in 1912. He proposed that all continents were once part of a supercontinent called Pangaea, which broke apart and the pieces drifted to their current locations over millions of years.
Learn more about Continental Drift here:https://brainly.com/question/32791909
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Scientists who study rock formations in caves describe some of the formations as "living rock" because, under certain conditions, they increase in size. Which statement would best dispute the claim that these rock formations are living?(1) Rocks are not composed of cells, while living
organisms are.
(2) Rocks perform complex metabolic processes,
but cannot grow.
(3) Rocks cannot reproduce sexually.
(4) Rocks remain stable in a wide range of physical
conditions.
Answer:
1). Rocks are not composed of cells, while living organisms are.
Explanation:
Heating and cooling of the Rock by sun rays (weathering) , Conditions like this makes the rock to have a change in shape.
Anthropological research reveals that most ethnic groups and nations are recent historical creations, our connection to people within these groups is relatively new, and our shared traditions are recently invented. In addition, most members will never meet each other. This allows us to observe that most nations today are what?
a. imagined communities
b. genocidal
c. diasporas
d. ancient tribes
Answer:
a
Explanation:
Most nations today have little more in common than a collection of traditions that are often no more than a few thousands years old. Even in the case that they are older, the constant transformation of habits and practices and the great amount of intercultural exchange lends a great deal of superficiality to the idea of a nation.
Therefore, a nation is a relatively new imagined community that depends in large part on being sustained within the consciousness of each individual member.
Which U.S. region receives the most precipitation? Northeast West Midwest South
Answer:
The Hawaii islands, have the rainiest place in the United States, it is the Mount Waialeale on Kauai, and it averages around 11,684 mm of precipitation.
The West regions climate is mild, cold and wet.
Explanation:
Answer: The Northeast
Explanation:
How does the movement of tectonic plates contribute to the formation of metamorphic rock?
Answer:
Inside the Earth's mantle there are convection currents that produce the movement of tectonic plates. Through the earth's crust the hot magma moves to the surface, which causes cracks between the plates and separates them.
When the magma reaches the surface it cools and becomes dense, and then sinks back into the mantle.
When this process happens extremely, metamorphic rocks are formed. That is, the rocks are exposed to extreme pressure or an increase in temperature, and it only occurs if the magma inside the rock is hot enough to rearrange the rock material without melting it.
As the magma goes out towards the surface of the earth, it melts the rocks that it finds in the way , which heat up, change and form the metamorphic rocks.
The movement of tectonic plates generates heat and pressure needed for the formation of metamorphic rocks. This occurs at plate boundaries where collisions and subductions happen, leading to the recrystallization of existing rocks into new minerals and structures such as slate and schist. These processes create distinct foliated textures in the rocks, and erosion eventually brings them to the surface.
Explanation:The movement of tectonic plates is a crucial factor in the formation of metamorphic rocks. These rocks are formed under the influence of intense heat and pressure, conditions often found at the boundaries of tectonic plates. Plate tectonics contribute to metamorphism in several ways. For example, when plates collide, the pressure generated by this collision can cause the rock at the boundary to recrystallize, transforming it into metamorphic rock.
Similarly, when one plate slides beneath another in a process known as subduction, the rock subjected to the pressure and high temperatures deep within the Earth recrystallizes into new mineral configurations characteristic of metamorphic rocks.
Furthermore, the movement of tectonic plates can lead to the burial of rock beneath thick deposits, where the increase in pressure and the geothermal gradient—natural temperature increase with depth—contribute to metamorphism. The process can create various types of metamorphic rocks, from slate and schist to garnet-bearing gneiss. These rocks often have a distinctive banded or foliated appearance due to the alignment of mineral grains under the direction of the pressure applied during their formation.
Over time, erosional processes can expose these metamorphic rocks on the Earth's surface. Thus, through the constant motion of tectonic plates, landscapes evolve, and the Earth's crust is continually recycled into different rock types, with metamorphic rocks marking the dynamic history of plate interactions.
Which of the following applies to the basic constituents of halite, gypsum, and sylvite?
A. transported as dissolved ions;
B. deposited as detrital mud transported as detrital mud;
C. deposited by evaporation transported and deposited as mud-sized particles transported as dissolved ions;
D. deposited by evaporation
Answer:
A. transported as dissolved ions
Explanation:
Answer:
A. transported as dissolved ions;
Explanation:
PLEASE HEELLPP!!!! Shinumo Quartzite ( a type of sandstone) was deposited over the Hakatar Shale. What happened to the sea level from the time the Shale was deposited to the time the Quartzite was? Hint: Think about the environment and depth that each rock forms at.
sea level dropped
sea level rose
sea level stayed the same
not enough info
Final answer:
The sea level dropped from the time the Hakatar Shale was deposited to the time the Shinumo Quartzite formed. The shale suggests a deeper water environment, and the overlying quartzite, originally sandstone, indicates a shallow water environment, signifying a regression in sea level.
Explanation:
To understand the changes in sea level between the deposition of Hakatar Shale and the overlying Shinumo Quartzite, which is a type of sandstone, we must consider the sedimentary environment in which each type of rock forms. Shale typically forms in deeper water settings where fine particles settle out of calm water, while sandstone forms in areas with more water movement, such as beaches or shallow seas near the shore. Since quartzite is a metamorphic rock that originated as sandstone, we know that the original sandstone must have been buried and subjected to heat and pressure to transform into quartzite.
The presence of quartzite atop shale suggests that there was a change in the environment indicating a regression in sea level. This regression would have allowed sand to deposit on top of the shale and then eventually become metamorphosed to quartzite. This concept is in line with Walther's Law, which states that the vertical sequence of sedimentary rocks reflects the lateral changes in environment. If sea level dropped, or regressed, it would expose the earlier sediments to erosion and allow newer, shallower water deposits, like sandstone that would later become quartzite, to form on top.
Which of the following is false concerning the development of dead zones in coastal waters, for example, the dead zone in the Gulf of Mexico?
A. Higher levels of nutrients entering streams and ultimately the oceans lead to overproduction of algae and cyanobacteria.
B. When alive, the algae and cyanobacteria photosynthesize and produce oxygen but only during the daylight hours.
C. High concentrations of algae and cyanobacteria require oxygen to survive during the dark hours of the day, leading to depletion of oxygen levels.
D. When they die, algae and cyanobacteria sink to the bottom of the coastal zones where heterotrophic aerobic bacteria feed on them and deplete the water of oxygen.
E. Dead zones in coastal waters of the oceans have been a common occurrence for many thousands of years.
Answer:
E
Explanation:
Occurrence of dead zones in coastal waters not common.
Answer: option E is correct
Explanation:
Nutrients from human activities that are channeled using pipes into water bodies are the main cause of dead zone due to industrialization which is not up to a thousand years so option E is false about dead zone.
The Pacific Ocean has _______ water than the Atlantic Ocean. _______ circulation moves water between warmer and cooler, and saltier and less salty, areas of the ocean. If the thermohaline circulation stops due to global warming, Europe will likely become _______.
Answer:
more water
Explanation:
because of the climatic conditions
The correct answers are the following.
First blank: warmer. Second blank: thermohaline. Third blank: colder.
The Pacific Ocean has warmer water than the Atlantic Ocean. Thermohaline circulation moves water between warmer and cooler, and saltier and less salty, areas of the ocean. If the thermohaline circulation stops due to global warming, Europe will likely become colder.
Thermohaline circulation is the current is deep ocean waters, where the density and the temperature of the water are different. The deep-ocean waters start in the polar regions of the earth where the water is extremely cold. Here, the water gets saltier due to the formation of sea ice.
Which south american countries does the tropic of capricorn pass through
Answer:
They are 4, Argentina, Brazil, Chile and Paraguay.
Explanation:
The tropic of Capricorn is an imaginary line is placed 23.5 degrees south of the Equator.
This is the zone where the sun is highest during the winter solstice, it was named around 2000 years ago by the Greeks. The word "troops", which means turn, because the sun seems to turn around in the opposite direction after every solstice.
When the entire population of a state is not bound by a shared sense of nationalism but is split by several local primary allegiances, that state is said to suffer from cultural subnationalism.
Answer:
The statement is true. Cultural nationalism is a form of nationalism in which the nation is defined on the basis of a common culture.
Despite that, there are cases where nations are so extensive that a cultural distinction develops between their different geographical sectors. This can be clearly seen in Canada, where the western part of the country has cultural features associated mostly with the United States and Great Britain, while the east is culturally mostly related to France. Between both zones, idiomatic, political, architectural and even social differences can be observed. This is an example of cultural subnationalisms within a nation.
Approximately how much more soil was lost using conventional tillage rather than reduced tillage?a. 16,000 kg/ha b. 5,000 kg/ha c. 50 kg/ha d. 160 kg/ha
5000 kg /ha was lost by using “conventional tillage” rather than “reduced tillage”.
Option: b
Explanation:
There are two types of tillage systems they are:
Conventional tillage: This is preferred when the region uses one or more practices like plowing, harrowing and disking. This reduces the soil fertility.
Reduced tillage: This method reduces the soil distribution without using any tillage methods during cultivation. In this method the soil is prepared for seedling when the farmers sow the seeds.
According to the research made most of the vegetable lands are farmed by using conventional tillage hence, this reduces the soil fertility. Due to this 5000 kg /ha was lost by using “conventional tillage” rather than “reduced tillage”. Compared with the “conventional tillage” the “reduced tillage” is more beneficial.
The highland games celebrates the culture of which country?
Answer:
They celebrate the Scottish and Celtic Culture, they are held in Scotland.
Explanation:
These games consist of several athletic competitions, such as piping, drumming, dancing, caber toss, stone put, among the most popular. Music also plays a big role in the games, even 20 or more bands can get together to play music such as Scotland the Brave, among other national anthems.
Every year they attract over 3.500 competitors and more than 20.000 viewers. They are a vital part of the Scottish culture.
The Highland Games celebrate the culture of Scotland.
These games originated in Scotland and are deeply rooted in Scottish history and tradition.
They feature a variety of athletic competitions, such as caber tossing, hammer throwing, and tug-of-war, as well as music, dancing, and other cultural events.
The Highland Games provide a platform for Scots and people around the world to come together and celebrate Scottish heritage, showcasing aspects of traditional Scottish culture, sports, and music.
Therefore, the Highland Games primarily celebrate the culture of Scotland.
Coastal California is famous for fog and smog (fog mixed with smoke). Why is the California coast foggy/smoggy, whereas Houston, Texas, which is at similar latitude, might get occasional smog from too many cars, but fog is relatively rare?
A) Warm air in Texas rises to make clouds and not fog, whereas in California cold water from the ocean mixes with warm water from the land to generate fog.B) The ocean is warm off the Texas coast, but a cold current running offshore California generates fog when the cold, moist air is drawn ashore by a sea breeze.C) Cold currents along the Texas coast inhibit fog, whereas the ocean is warm off California.D) There isn't really any fog; it is all just smog from too many
Because ocean is warm off the “Texas coast”, but a “cold current” running “offshore California” generates “fog” when the “cold”, “moist air” is drawn ashore by a “sea breeze”.
Option: B
Explanation:
Coastal California is famous for fog and smog as the Pacific Ocean participate in the frequency of fog by catering atmospheric moisture and with the help of its temperature. “The prevailing current” flows from the “northwest” along California coast and in the “North Pacific” its origin is cooled. For “condensation” of “moisture” from “vapor” into “cloud droplets”. Pacific Ocean is an important source of nuclei. As Houston and Texas cities lie at similar latitude and might get smog occasionally but fog is rare because “ocean” is “warm” off the “Texas coast”.