Answer:
Igneous rocks are formed by the cooling and crystallization of molten rock.
Explanation:
Igneous rocks are rocks that forms by the cooling and solidification of magma. Magma is a molten rock. When the molten rock reaches the earth surface, it is called a lava.
Some igneous rocks form deep within the crust and we say they are intrusive or plutonic igneous rocks.
Some forms on the surface of the earth crust. We call them volcanic or extrusive igneous rocks.
Some igneous rocks forms very close to the surface and we say they are hypabyssal igneous rocks.
Answer:
Igneous rocks are formed by the cooling and crystallization of molten rock.
Explanation:
In cap-and-trade system, countries can buy and sell
vehicles.
businesses.
fertilizer.
pollution credits.
Answer:
pollution credits
Explanation:
In cap-and-trade system, countries can buy and sell pollution credits.
Explanation:Carbon credits is a permit which allows either a company or a country to emit greenhouses but limits the amount that can be emitted. It aims to reduce pollution and greenhouses gases emitted. The credits are valued against one tonne of carbon dioxide and a certain number is allotted to each country.
Trading carbon credits between countries or companies promote balance in worldwide emission. The proposal for pollution credits that set emission budget for countries was made in 1997 and meant to be in operation in 2005. Participating countries signed to endorse the deal.
In the 1800s and 1900s, small Mediterranean kingdoms and principalities became united under a concept called
the Renaissance.
nationalism.
complementarily.
city-states.
Answer:
the answer is NATIONALISM
Explanation:
Answer:
Option: Nationalism.
Explanation:
The urge to the nationalism began to grow in Europe after the Napoleon war. In the 1800s, Italian were prepared to build a new Italy by unifying the states together. Earlier Italians identified themselves with their local regions such as Rome, Florence, and Venice. Guiseppe Mazzini found a political movement called Young Italy (patriots) in the 1830s to unify Italy. Italy unification was necessary because of its history and one common language.
Within the Ottoman Empire, many groups such as the Bulgarians, and Romanians revolted against the Ottomans, hoping to set up independent nations.
What is the busiest transport hub in the world?
Answer:
Shinjuku
Explanation:
The Busiest Transport Hub in the World. A major railway station in Tokyo, Japan, the Shinjuku Station is the busiest transport hub in the world.
What is the northernmost country in europe
Answer:
Norway
Explanation:
Norway is the northernmost country in Europe.
However, the United States is much larger than Norway.
Where is the oldest public park in the u.S.?
Hi !!
The oldest park in the US is the Yellowstone National Park, (Wyoming-Montana-Idaho) which was established on March 1st, 1872. (Located mostly in Wyoming)
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Which of the following is a way that Southern Africa became populated?
The Shona spread from Central Africa.
The Malagasy came from Zimbabwe.
The Bantu came from Madagascar.
The San came from Botswana.
The Shona spread from central Africa.
How was the land taken in South Africa?
The 1913 Natives Land Act noticed hundreds of black households forcibly eliminated from their land by the apartheid government. The Act have become law on 19 June 1913 proscribing African land possession to 7 percent and later thirteen percent via 1936 local belief and Land Act of South Africa.
What sorts of farming are performed in equatorial Africa?Many are subsistence farmers who clear the land by burning off the flower's cover. A number of the vegetation grown are cassava (manioc), candy potatoes, oil palm fruit, plantains, bananas, coconuts, espresso, and cacao.
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There is a large area made of schist. What is the most likely environment that existed before the area was metamorphosed? Choose one of the following and discuss as to why you chose it?
(A) desert dunes
(B) coral reef
(C) ocean floor
(D) volcano
Answer:
(C) ocean floor
Explanation:
The protolith or parent rocks that forms schists are basically mudstones and shales. These are clastic sedimentary rocks that are rich in fines(clay sized particles).
Most shales are usually formed in deep ocean floors because larger sized clastic sediments cannot reach these environments. Winds and waves acts as active agents to deposit fines on the ocean floor.
Since shales are predominantly made up of clay minerals which are products of micas that have been chemically altered, we expect these clay minerals which are hydrous(contains water) to revert back to mica under metamorphic conditions.
As metamorphic transformation progresses under intense pressure and temperature and also minerological transformation, our rock moves from slate, to phllylite and then to schists.
Slate is a low grade metamorphic rock that is usually fine grained and foliated. As metamorphism increases, mica begins to grow and a shiny lustre appears in the rock, a phyllite results. Schists have larger mica grains and are foliated also.
Desert dunes are mostly made of sandstones. Their metamorphic transformation yields quartzite.
Coral reefs ar made up of rich calcite deposits and would form a metamorphic rock known as marble.
The most likely environment before the area was metamorphosed into schist is the ocean floor, as schist forms from sediments typically found there.
Explanation:The large area made of schist likely indicates that the environment before metamorphism was an ocean floor. Schist is a medium-grade metamorphic rock that commonly forms from the alteration of sediments rich in clay or volcanic material, conditions that are typically found on the ocean floor, where significant pressure and heat can transform deposited layers into metamorphic rock. This option suits the geological process of schist formation more than desert dunes, coral reefs, or a volcanic environment. Desert dunes would more likely result in sandstone, coral reefs could form limestone, and volcanic areas would typically yield igneous rocks directly.
The easy‑going Carioca, the annual Carnival, Copacabana Beach, and Sugarloaf Mountain are iconic images of: (A) São Paulo (B) Rio de Janeiro(C) Buenos Aires(D) Caracas
The correct answer is B. Rio de Janeiro
Explanation:
Rio de Janeiro is one of the main cities of Brazil located in the Southeast of the country. This area is one of the most famous and popular for tourists all around the world due to places such as the statue of Christ the Redeemer, beaches such as Copacabana that is located in the south of the area and is a Balneario beach and the sugarloaf Mountain known for its panoramic views of Rio de Janerio. Besides this, Rio de Janeiro is known due to its annual carnival that is the biggest in the world and occurs at the beginning of each year in February or March and also due to its people called Carioca that are easygoing or relaxed. Therefore, all easy-going Carioca, the annual Carnival, etc. are iconic images of Rio de Janeiro because they all are elements that can be found in this place.
The easy-going Carioca, the annual Carnival, Copacabana Beach, and Sugarloaf Mountain are iconic images of Rio de Janeiro.
Explanation:The iconic images of the easy-going Carioca, the annual Carnival, Copacabana Beach, and Sugarloaf Mountain are associated with Rio de Janeiro (B).
Rio de Janeiro is a city known for its vibrant culture, including the famous Carnival festivities and its beautiful coastline. The city attracts tourists from around the world with its cultural attractions and landmarks such as Sugarloaf Mountain. With a population of over 10 million, Rio de Janeiro is a major travel and business center in Brazil.
The change in manufacturing from using human labor to using machines occurred during the
Industrial Revolution.
Agricultural Revolution.
Technological Revolution.
Social Revolution.
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Which of the following is an example of acculturation?
Unique housing arrangements in Thailand
The spread of U.S. fast-food chains around the world
Retaining the French language in Canada
Eliminating German customs in Brazil
Answer:
Retaining the French language in Canada.
Explanation:
Retaining the French language in Canada is an example of acculturation.
Acculturation is a change in language or social activity.
Name the airport to have a terminal in two countries
Answer:
Tijuana Airport
Explanation:
The Tijuana Airport is the only airport in the world that has a terminal in two countries. This airport has a terminal in Tijuana, Mexico, and in San Diego, the United States. The Cross Border Xpress Bridge and Terminal is what connects the two terminals, making it a very interesting way to be in two different places at the same time. This airport is very important for the region, for both countries, with northern Mexico and the southwestern most part of the United States having huge benefit from it. It is also an excellent example of good relations and collaboration between two countries, and that with only small adjustments and will lot of things can be achieved.
Geneva International Airport (GVA), located on the Swiss-French border, has a terminal that serves two countries due to a unique international agreement.
The airport known for having a terminal in two countries is the Geneva International Airport (GVA), also referred to as Genève Aéroport. The airport is situated along the Swiss-French border and has a unique agreement allowing it to have an area accessible from both Switzerland and France. This makes travel convenient for passengers from both countries. This type of infrastructure highlights the significance of cooperative international agreements and their impact on the civil aviation industry.
What country has the greatest temperature difference between its northern and southern borders?
China has the maximum temperature difference between its northern and southern borders.
Explanation:
The temperature difference ranges to almost 86 F. The temperature of China is affected by polar and Pacific air masses which bring extreme cold weather to the north.
In the south, ocean air masses bring moist weather. In the north, the dry air masses lead to cold weather whereas in the south, the temperature remains stable almost all the year round with rainfall.
China
Further explanation China is the largest country in Asia which has the biggest temperature difference between its northern and southern borders. Temperatures generally decrease from south to north. In the north-eastern part of China, precisely in the city of Harbin, the lowest and highest average temperatures in the city were recorded at -2°F (or -19°C) in January and 73°F (or 23°C) in July. In cities located in the southern part of China, one of them is in the city of Guangzhou (or Canton), the lowest and highest average temperatures in the city were recorded at 57°F (or 14°C) in January and 84°F (or 29°C) in July and August. The difference in average temperature between China's northern and southern borders is around 86°F (or 30°C).China has five temperature zones as follows:
Cold-Temperate Zone with representative city and areas: Harbin, north part of Heilongjiang Province, Inner Mongolia. Mid-Temperate Zone with representative cities and areas: Liaoning, Beijing, Urumqi, Hohhot, Lanzhou, northern Xinjiang, Inner Mongolia. Warm-Temperate Zone with representative cities: Xi'an, Taiyuan, Shandong, Hebei Province, the Yellow River. Subtropical Zone with representative cities and areas: Shanghai, Guangzhou, Hong Kong, Macau, south of isotherm of Qinling Mountain-Huaihe River. Tropical Zone with representative cities and areas: Guangzhou, Haikou, Sanya, Hainan and Yunnan province, southern Taiwan. Plateau Climate Zone with representative city and areas: Lhasa and Qinghai-Tibet Plateau.China's climate is very diverse because of the extraordinary differences in latitude, longitude, and altitude. In the far north is subarctic, and in the far south is tropical. The different capacities of heat-absorbing of continents and oceans cause monsoons to dominate the climate.
During the summer: the East Asian Monsoons bring warm and moist air from the south and provide most of the annual precipitation. During the winter: the Siberian anticyclones predominate, bringing cold and relatively dry conditions. Learn more The Dust Bowl in 1930s https://brainly.com/question/1386144Continental crust is generally older than oceanic crust brainly.com/question/10537829Keywords: China, what country, has, the greatest, temperature difference, between, northern, and, southern borders, average, Harbin, city, Guangzhou, Canton, north-eastern part
Which of the following regions was least impacted by water scarcity between 2000 and 2010? A. Africa B. Asia C. Canada D. Spain Please select the best answer from the choices provided. A B C D
Answer: C
Explanation: Cnanda rich rich
Spain was the least impacted region by water scarcity between 2000 and 2010.
Explanation
A water scarcity is a shortage of fresh water to meet water needs that can be caused by climate change, e.g. due to changing weather conditions including drought and floods, increased pollution and human demand and excessive water consumption.
It has many negative environmental effects on lakes, rivers, and other fresh water resources. Water scarcity is common in irrigated agricultural areas causing environmental damage in various ways.
The Roman Republic was established on the rule of law and
the concept of "rebirth."
mythology.
the glory of war.
the balance of power.
Answer:
balance of power
Explanation:
Because people began re-noticing and re-appreciating ancient works during this time period, Florence's Italian Renaissance was a revival of Greco-Roman classical beliefs and customs. Hence option D is correct.
What was the concept of "rerbirth" ?This was the major justification for thinking that Greco-Roman classical beliefs had been revived during the Italian Renaissance.
The brothers Romulus and Remus are said to have built Rome in 753 BC. From that time until the early sixth century BC, a period known as the regal period, Rome was controlled by a succession of seven kings.
The last king of Rome, Lucius Tarquinius Superbus, was expelled in 510 BC after the Romans overthrew the Etruscan-dominated monarchy and instituted a republic. the chief executive of Two consuls who are elected every year took the king's place (magistrates). Many of the governmental structures that made up the early Roman Republic were actually left overs from the regal era but were given new functions.
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In urban Africa, all of the following forces have driven the trend toward ever more people engaging in multiple economic activities except:
(A) increasing numbers living close to the poverty level.
(B) government programs that help to reduce family size
(C) limited job creation in the private sector
(D) employment freezes and retrenchment in the public sector
Answer:
The correct answer is option B.
Explanation:
In the urban parts of Africa more and more people are getting engaged in multiple jobs. This trend is because of several reasons.
There is an increase in the number of poor people or people living close to poverty lines. To meet their ends, they are doing multiple jobs.
Also, there is limited job job creation in the private sector. Economic growth is slow leading to lesser job creation than required.
In the public sector as well, there is no job creation, in fact retrenchment is taking place.
Though multiple jobs do not have link with government programs to reduce population.
So, option B is the correct answer.
Which of the following is the most direct cause of water pollution in Northwestern Europe?
not enough bacteria to break down waste
increasing numbers of foreign species
overfishing of native species
using the sea for waste disposal
Answer:
Using the sea for waste disposal
Explanation:
Answer:
Using the sea for waste disposal
Explanation:
Water is the leading resource for any living organism. Besides, it provides habitats for sea creatures and other specialists that dwell in the water. Having the availability to clean water is essential to a human being for good and substantial health. Many people in Europe have possesses clean water, but some areas do not meet organic standards. Therefore the water is polluted, thus making it unsafe for aquatic animals. The animals and plants in the lake react with the environment changes.
What is the greatest negative environmental impact that occurs when people live in suburbs instead of living in cities? a. Suburbanites do not recycle. b. Suburbanites have higher rates of cardiovascular disease. c. Suburbanites take up many times as much space as city dwellers. d. Suburbanites are not aware of resource use.
Answer:
c. Suburbanites take up many times as much space as city dwellers.
Answer:
C. Suburbanites take up many times as much space as city dwellers.
Explanation:
The greatest negative environmental impact that occurs when people live in suburbs instead of living in cities is Suburbanites take up many times as much space as city dwellers.
Planetary orbits are highly inclined to the ecliptic. have the Sun at their exact center. are evenly spaced throughout the solar system. are spaced more closely together as they get further from the Sun. are almost circular, with low eccentricities.
Answer:
Planetary orbits are almost circular, with low eccentricities.
Explanation:
Planetary motion is explained by Kepler's three laws. According to the Kepler's three laws of planetary motion, the orbits of planets are elliptical with Sun at one of its focus. These paths have low eccentricities which makes them almost circular.
The orbits are neither equally spaced nor closely together as they get further. The planetary orbits are almost along the ecliptic. (Ecliptic is the path of the Sun as observed from the Earth throughout the year).
Metamorphic rocks formed during episodes of mountain building typically show textural characteristics indicative of shearing stress and deformation. True or false?
Answer:
True
Explanation:
Metamorphic rocks are changed rocks. These are rock types that have been subjected to intense pressure and temperature to have effected mineralogical changes in a pre-existing.
During mountain building processes usually at plate margins, rocks are subjected to a very high level of tectonic stress and elevated temperature resulting from frictional heating between rocks.
Stress is the force applied per unit area. In a rock body, it causes deformation. The evidence of the deformation is recorded as fabrics in metamorphic rocks. An ideal environment for shearing stress and deformation to take place is where orogenic forces(mountain building) are at work.
Final answer:
True. Metamorphic rocks formed during episodes of mountain building often display textural characteristics that are indicative of shearing stress and deformation. Such metamorphic rocks typically show foliated textures as a result of the directed pressures and high-temperature conditions they undergo.
Explanation:
Metamorphic rocks are transformed from pre-existing rocks under the influence of high temperature, pressure, or chemically reactive fluids. Characteristics like foliation occur due to directed pressure which aligns minerals perpendicularly to the main stress, resulting in a layered or banded appearance. This kind of metamorphism is common beneath mountain ranges where geological processes lead to increased pressures and temperatures as rocks are pushed to greater depths by the thickening of the Earth's crust during plate tectonics activity. Over time, rocks can be uplifted and exposed by erosion, revealing the foliated patterns. Understanding the formation of these metamorphic rocks is complex, as they may undergo multiple tectonic events leading to varied properties. Geologists classify these rocks based on the texture, mineral content, and the temperature and pressure conditions they endured during metamorphism.
Spain, Italy, and Greece are transitioning:
to a service economy.
to rule by multiethnic regimes.
to a time of high birthrates.
to an agrarian society.
Answer:
to a service economy
Explanation:
The countries of Southern Europe, Spain, Italy, and Greece. have been gradually transitioning to service economies in the past several decades. The main reason for this is that these countries are the most attractive tourist destinations in Europe, which is due to their nice climate, long coastlines, beautiful beaches, and lot of historical, beautiful sites. More and more of the population has started to specialize for the service sector, mostly the tourism because of this, and rightly so, considering that this is the sector that brings in most of money and offers more and more jobs.
Answer:
to a service ecomony
Explanation:
Which of the following European countries has a marine west coast climate?
Answer:
Italy
Explanation:
Italy is the country that has a marine west coast climate.
Italy is located in Europe and is 5,352 mi from the United States.
Answer:
The European countries that have a marine west coast climate include coastal Oregon, Washington, British Columbia, and southern Alaska.
Explanation:
The oceanic climate is the climate that is found in the coastal region, and it is humid in almost all time to the years. The geographical location is on the west side of the oceans that bring cloudy precipitation skies and mild temperatures. The mountain system orientations usually influence the climate distribution in Europe and North America regions. The marine climate has a narrow strip that extended to the north and south parts of the mountains.
Which country has the largest oil reserve?
Answer:
venezuela
Explanation:
El Niño events are characterized by: warm water piling up near Indonesia. a very strong cold current flowing along the eastern edge of South America. strengthening of the NE trade winds. pooling of unusually warm water in the eastern tropical Pacific.
The correct answer is D. Pooling of unusually warm water in the eastern tropical Pacific.
Explanation
The Niño phenomenon is a climatic event that is related to the warming of the equatorial eastern Pacific Ocean. This phenomenon usually has great effects in the continental zone of equatorial America, because it produces abundant rains and in some areas it causes the fish to move. The irruption of these warm waters is due to the atmospheric difference between the eastern or western Pacific Ocean. So, the correct answer is D. Pooling of unusually warm water in the eastern tropical Pacific.
El Niño events are characterized by unusual warming and pooling of water in the eastern tropical Pacific. This results from weakening of usually westward-blowing winds, allowing the warm water to flow back eastward. El Niño's effect ripples globally, influencing weather patterns and causing extreme conditions like droughts or floods.
Explanation:El Niño events are characterized by a pooling of unusually warm water in the eastern tropical Pacific. Unlike normal conditions, during El Niño, the prevailing winds which usually blow to the west weaken. As a result, warm water that had been piling up near Indonesia due to these winds is allowed to flow back towards the east.
El Niño does not involve a very strong cold current flowing along the eastern edge of South America. In fact, it is associated with warmer than usual sea surface temperatures in the eastern Pacific. The strengthening of the NE trade winds is also a condition for La Niña, the counterpart of El Niño, not El Niño.
It's important to note the effects of El Niño can be felt globally. It can influence global weather patterns and lead to devastating droughts or flooding in different parts of the world.
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The bosphorus strait divides which two continents
Answer: Asia, And Europe .
The majority of Argentines are descended from
Chinese and Indian immigrants.
Spanish and Italian immigrants.
American and Mexican immigrants.
Japanese and Australian immigrants.
Answer:
Spanish and Italian immigrants
Explanation:
I'm from Argentina
Answer:
Spanish and Italian immigrants.
Explanation:
Most of the Argentinians decedent are form the 19th and the 20 th century and has 97% of the population with a European base and partly European and most of them form the Spanish, Germany and Italy and the France ad have a significant connections due to the language and customs and the traditions and Italian population in Argentina is the third-largest on the world.What is the purpose of the European Union?
to ease demographic transition
to prevent devolution
to end the Cold War
to promote economic and political unity
Answer:
to promote economic and political unity
Explanation:
The European Union was formed shortly after the end of the World War II. The reason for the formation of this organization was to promote economic support and development between the nations, as well as political unity, thus future conflicts to be prevented on the continent. The organization started off in Western Europe with only handful of members, but it gradually started to include other European nations in it, and nowadays there are more country members of the European Union in Europe, than countries that are not members of it.
Deer, moose, elk, black bear, mink, wolves, and wolverines are best associated with the Mediterranean Woodland and Scrub Boreal Forest Tropical Savanna Tropical Scrub
Answer:
Boreal forest
Explanation:
The boreal forest is a biome that is found in the Northern Hemisphere. It is located between the temperate forests and the tundra. These forests are dominated by coniferous trees. The climate is continental, with the winters being very cold and snowy, while the summers are pleasant with mild temperatures. The animals that live in these forests are the elk, moose, deer, wolverines, wolves, black bears, mink, foxes, lynx, among others. All these animals have special adaptations that enable them to live in this biome. They all have thick fur for most of the year, only shedding slightly during the summer.Their paws tend to winder and have goo isolation so that they can walk easily on the snow and avoid frostbite. It is not a biome that has very big diversity in flora and fauna, but it is not a one that lacks in it as well.
Final answer:
The animals like deer, moose, elk, black bear, mink, wolves, and wolverines are typically found in the taiga and boreal forests. This biome is characterized by cold climates, coniferous forests, and animals adapted to endure long winters with behaviors like hibernation and migration.
Explanation:
The animals listed such as deer, moose, elk, black bear, mink, wolves, and wolverines are best associated with the taiga and boreal forests.
In North America, the taiga or boreal forest is a biome characterized by coniferous forests consisting mainly of pines, spruces and larches. Here, you can typically find animals adapted to colder climates. For example, the moose is a defining animal of this biome, so much so that it has contributed to the nickname "spruce-moose biome."
These animals have evolved to endure the long, snowy winters common in the boreal forest. Many of them, such as black bears, hibernate during the winter, while others, like birds, migrate to warmer areas. The biodiversity in the taiga is less than that found in tropical rainforests, but it still hosts a considerable number of species, reflecting the ecosystem's productivity during the growing season.
What is the difference between a fracture zone and transform fault? A transform fault is a crack, but a fracture zone is a hole in the crust A transform fault is perpendicular to the mid-ocean ridge, but a fracture zone is not. They are two names for the same feature, a break in the plate formed by a slip at a transform plate boundary A transform fault has strike-slip motion in reverse of the direction that the plates move apart at the mid-ocean ridge, but a fracture zone has the opposite sense of motion. A transform has an active fault, separating two plates, whereas a fracture zone is just the “scar” formed on one plate by the transform fault
Answer:
A "transform fault" is a fault line where two tectonic plates slide against each-other. Not all faults are transform faults. Some plates separate and allow magma to seep up and like a scab, creating new ground (these are called divergent faults.) Other faults, such as convergentfaults, occur when two plates smush into each-other and one is forced below the other where it heats up and is eventually destroyed. And the fracture zone is thus the junction between oceanic crustal regions of different ages.
Explanation:
Answer:
The difference between a racture zone and transform fault Is: transform has an active fault, separating two plates, whereas a fracture zone is just the “scar” formed on one plate by the transform fault
Explanation:
All right to understand this answer we need to remember what is a fracture zone and a transform fault.
All right, first of all, Fracture zones are oceanic linear structures that are produced by platonic plaques movement. So when they move and provoke a terrain change they can be created. They can be tectonic active and preserve a crest in the edges.
Transform faults are terrain boundaries of tectonic plaques with horizontal motion, they are also connected to another transform fault and in many cases, they picture zig-zag scenarios in the bottom of the ocean.
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How have modern transportation and communication affected folk cultures?
I. Folk cultures have greater access to a variety of resources and information.
II. Folk culture from once-isolated regions can be diffused to other regions of the world.
III. Pop culture threatens to eradicate folk culture as groups abandon traditions in favor of a common culture.
IV. Folk cultures have less influence on pop culture than ever before.
I and IV
III and IV
I, II, and III
II, III, and IV
Hi !!
I would answer ► 2, 3, 4
II- Folk culture from once isolated regions can be diffused to other regions of the world.
III- Pop culture threatens to eradicate folk culture as groups abandon traditions in favor of a common culture.
IV- So folk culture have les and less influence than ever before.
Which is not so in countries less "developed" industrial countries where traditions are still very important. Of course, they do not have modern communication, but their traditions aren't disappearing.
I, II and IV are available ... otherwise, that's what I would have said !!
or I and just IV .....
hope this is correct and helpful ☺☺☺
Paleomagnetism is the study of the ____________________ magnetism in rocks. When magma cools, the magnetic iron-bearing minerals align themselves with the Earth's magnetic field and record ____________________ and ____________________.
Final answer:
Paleomagnetism studies the magnetic properties in rocks to understand Earth's past magnetic field directions and intensities, which help in determining the depositional age of sediments.
Explanation:
Paleomagnetism is the study of the recorded magnetism in rocks. When magma cools, the magnetic iron-bearing minerals align themselves with the Earth's magnetic field and record direction and intensity. Geologists can analyze the magnetic properties of sediment cores for magnetostratigraphy, which is used to help determine the age of sediment deposition. This is possible because magnetic minerals in igneous rocks crystallize in alignment with Earth's magnetic field, and even sediments can align themselves as they are deposited. Therefore, the paleomagnetic properties in these sediments can be compared to known changes in Earth's magnetic field and then used to determine the sediment's depositional age.