According to the mantle plume model, hot-spot plumes Choose one: A. partially melt the base of the overlying crust, and the magma that is formed becomes a large magma chamber. B. stream upward quickly because their hot magma is less dense than the overlying rock. C. produce volcanoes that always coincide with a plate boundary. D. are thought to originate at the core-mantle boundary.

Answers

Answer 1

D. are thought to originate at the core-mantle boundary.

According to the mantle plume model, hot-spot plumes are believed to originate at the core-mantle boundary, which is the boundary between the Earth's core and mantle. These plumes are thought to be narrow, vertical columns of exceptionally hot and buoyant material rising from the deep mantle toward the Earth's surface.

As the hot-spot plume ascends through the mantle, it can partially melt the overlying asthenosphere, which is a relatively weak and partially molten layer of the upper mantle. The molten material formed from this partial melting can accumulate to form a large magma chamber beneath the Earth's crust. This process is not exclusive to hot-spot plumes but can also occur in other geologic settings, such as subduction zones.

The magma produced from the partial melting of the asthenosphere can eventually reach the Earth's surface through volcanic eruptions, forming volcanoes known as hot spots. These hot spots are not necessarily associated with plate boundaries, as they can occur within the interior of a tectonic plate. This is in contrast to volcanoes that typically form at plate boundaries, such as those associated with subduction zones or mid-ocean ridges.

Therefore, the correct statement is that hot-spot plumes, according to the mantle plume model, are thought to originate at the core-mantle boundary (option D).

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Related Questions

what are some of the unfortunate consequences for the residents of the pacific northwest due to this overall lack of earthquakes and resulting lack of awareness? Select one:
a.unreinforced masonry buildings by the thousands
b.~300 bridges built without codes
c.1000 unreinforced masonry schools
d.entire communities built on sandbars in rivers and bays, at or near sea level
e. all of these

Answers

All of the following are unfortunate consequences for the residents of the Pacific Northwest due to the overall lack of earthquakes and resulting lack of awareness: unreinforced masonry buildings by the thousands, ~300 bridges built without codes, 1000 unreinforced masonry schools, and entire communities built on sandbars in rivers and bays, at or near sea level. The correct option is e. all of these.

The Pacific Northwest is a region located in the northwestern part of the United States. It includes the states of Washington, Oregon, and Idaho, as well as parts of Montana and Wyoming. Due to the lack of earthquakes and awareness in this region, there are several unfortunate consequences for the residents living there.

Unreinforced masonry buildings are structures made from bricks or concrete blocks that have no steel or other support. When earthquakes occur, these structures are highly vulnerable and can collapse quickly. Unfortunately, there are thousands of unreinforced masonry buildings in the Pacific Northwest, putting many residents at risk.

Around 300 bridges were constructed in the Pacific Northwest without proper building codes. This means that they are not built to withstand strong earthquakes. As a result, many of these bridges are in poor condition and could collapse if an earthquake were to occur.

In the Pacific Northwest, there are approximately 1000 schools made of unreinforced masonry. These schools are not built to withstand earthquakes, and if a major earthquake occurs, they could collapse, putting thousands of students and teachers at risk.

Entire communities built on sandbars in rivers and bays, at or near sea levelMany communities in the Pacific Northwest are built on sandbars in rivers and bays, which makes them highly susceptible to flooding and tsunami waves. If a major earthquake occurs, these communities could be completely destroyed, and many residents could lose their homes and lives.

Therefore option e is correct .

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1. Two of the most commonly used of map measuring area in
the map is called

A) Grids and scales
B) Planimetric and grids
C) Direction and bearing
D) All of them​

Answers

A





Just make sure before you go
Clicking things


which of the following terms refers to a person who is very near total enlightenment and, before crossing over to nirvana, vows to help others strive toward nirvana?

Answers

A person who is very near total enlightenment and, before crossing over to nirvana, vows to help others strive toward nirvana is called bodhisattva.

A person who is progressing toward bodhi or Buddhahood is referred to as a bodhisattva or bodhisat in Buddhism. A bodhisattva is a person who has resolved to become a Buddha and has also received confirmation or a prophecy from a living Buddha that this will be the case, according to the Early Buddhist schools as well as contemporary Theravada Buddhism. Any person who has developed bodhicitta, a spontaneous desire and compassionate attitude to become a Buddha for the sake of all sentient beings, is referred to be a bodhisattva in Mahayana Buddhism. The bodhisattva is primarily viewed as a unique and outstanding person in Theravada Buddhism.

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For this activity, you will need to use the radial velocity and transit simulators that are part of the NAAP Labs software package (under the heading Extrasolar Planets). This is the software you downloaded from Canvas earlier this semester. Before you begin the activity, download the Qo’noS Observations file from Canvas. Instructions The star Qo’noS shines most brightly at 415 nanometers. Use Wien’s Law to calculate the star’s surface temperature. In this equation the peak wavelength is in nanometers and the surface temperature is in kelvin.
(peak)(T)=2,900,000
1. What is the surface temperature of Qo’noS?
Open the NAAP Radial Velocity simulator. Set the inclination and longitude of the system to 90 and 45 degrees, respectively. Then, slide the stellar mass bar until the star’s description matches the temperature you just calculated.
2. What is the spectral type, mass, and radius of the star Qo’noS?
The radial velocity and transit data provided both indicate the presence of an exoplanet in this system; astronomers have named it Praxis.
3. Based on the radial velocity data for Qo’noS, what is the orbital period of Praxis?
Slide the semi-major axis bar in the simulator until the system period matches what you determined for Praxis. You can be more precise by typing values into the semi-major axis text box.

Answers

The rate at which the distance or range between two places changes is referred to as the radial velocity, line-of-sight velocity, radial velocity, or range rate of a target with regard to an observer.

The formula / = v/c, where is the shift in wavelength observed for the object relative to the rest wavelength, ; v is the velocity of the object along the line of sight; and c is the speed of light, is typically used to calculate the radial velocity.

According to Hubble's law, the radial velocity—or movement of a galaxy away from Earth—is equal to the Hubble constant times the distance between the galaxy and the Earth.

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true or false: the position of the north and south magnetic poles is constant over human time scales.

Answers

False. The position of the north and south magnetic poles is not constant over human time scales.

The Earth's magnetic field is dynamic and undergoes changes over time. The magnetic poles, both the north and south, exhibit movement and can shift their positions. This phenomenon is known as geomagnetic secular variation. While the rate and magnitude of pole movements can vary, they have been observed to shift slowly over geologic time.

Scientists study the Earth's magnetic field and its changes by monitoring the movement of magnetic poles. Historical records, as well as data from satellite measurements and geomagnetic surveys, provide evidence of pole movement. These shifts are a natural part of the Earth's magnetic cycle and are influenced by complex interactions within the planet's molten iron outer core.

The movement of magnetic poles has implications for navigation systems, particularly for compass users and satellite-based navigation technologies. To account for these changes, navigational charts and systems are periodically updated to ensure accurate positioning. Therefore, it is important to acknowledge that the position of the north and south magnetic poles is not fixed and can change over time.

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Calculate the time on longitude 30 degree west when it is 11 am at place x which is located at longitude 80° East​

Answers

Difference of 90-degrees . . . . . given that 360-degrees corresponds to 24-hours (15-degrees per hour), 90-degrees will correspond to 90/15 = 6-hours time difference

So 11:00Am at 30-degrees east will correspond to 11 - 6 = 5:00AM at 60-degrees west (Sun rises in east and sets in the west)

which statement is true about rainforest​

which statement is true about rainforest

Answers

The third answer is the correct statement
which statement is true about rainforest

that one element of Global Trade that made the Industrial Revolution possible was the accumulation of

Answers

Harper winning the war

What is the connection between cloud formation and precipitation?

Answers

Answer:

Clouds are just lots of drops of water all stuck together. When clouds get so full of water droplets that they can't hold any more, the water falls back to the ground as rain! Sometimes the water droplets freeze and fall to the ground as snow, sleet, or hail. Water or ice that comes from clouds is called precipitation.

Precipitation forms in the clouds when water vapor condenses into bigger and bigger droplets of water. When the drops are heavy enough, they fall to the Earth. If a cloud is colder, like it would be at higher altitudes, the water droplets may freeze to form ice

If it's Summer in Argentina (#3), what season is it in Russia (#5)?

Group of answer choices

Spring

Fall

Summer

Winter

If it's Summer in Argentina (#3), what season is it in Russia (#5)?Group of answer choicesSpringFallSummerWinter

Answers

Based on the given map, when it is summer in Argentina, the season in Russia is Winter.

What season is Russia in Argentina summer?

When countries in the Southern hemisphere experience a season, the nations in the Northern hemisphere often experience the opposite season.

Argentina is in the southern hemisphere so when they are experiencing summer, the Russians would be experiencing winter for being in the northern hemisphere.

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list and describe all of the kinds of political units that are a part of the United States what might be some advantages and disadvantages for the people in each kind of unit

Answers

Answer:

A Advantage is you pay less on healthcare a disadvantage is it doesn't cover all.Explanation:

What type of information about a location would be most useful to a human geographer

Answers

Answer:

Its physical geological features

Explanation:

The physical features or design of an area is most useful. Mountains, valleys, plains, or forests or jungles.

help me please due soon

help me please due soon

Answers

what's up? the answer is desertification, best of luck with your studies

Compare the Coral Reefs of india and australia

Answers

Australia is a island continent and is surrounded by sea from four sidesCorals are common thing there.Also the great barrier reef in Pacific Ocean present near Australia.

On the other hand

Ind has lesser coral reefs.Rarely we can see corals in india.So less reefs are formed

The difference between the coral reefs in both of these nations is that Australia has the greatest population of coral reefs compared to India.

What are coral reefs?

This is a term that has to do with the large underwater structures that are found in water bodies.

The coral reefs of Australia are the largest in the world compared to that of India.

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20 POINTS!!!!!!

Which of the following is probably not an effect of urban sprawl?

A. the loss of habitats and biodiversity

B. decreased shortages of water and other resources

C. increased temperatures in summer months

more air pollution that is harmful to human health


Please select the best answer from the choices provided

A
B
C
D

Answers

Answer: B

Explanation:

Answer:

The answer is B ^^

The edges of three tectonic plates come together in _______ causing a great amount of volcanic activity.

Answers

The edges of three tectonic plates come together in _____________ _________causing a great amount of volcanic activity

Southeast Asia

Answer:

The answer is Southeast Asia

Explanation:

The edges of three tectonic plates come together in Southeast Asia causing a great amount of volcanic activity.

what strategy would increase the threat of climate change? group of answer choices shift from fossil fuels to a mix of carbon-free energy resources improve energy efficiency stop cutting down tropical forests capture and store as much carbon dioxide as possible continue with current practices

Answers

Responding to climate change involves two possible approaches: reducing and stabilizing the levels of greenhouse gases (“mitigation”) and adapting to the climate change already in the pipeline (“adaptation”).

One of the most challenging concerns we face today is climate change. It has numerous facets, including science, economics, society, politics, and moral and ethical issues. It is a worldwide issue that will persist for many millennia. The globe (and notably the ocean) takes a while to adapt to warming because carbon dioxide, the heat-trapping greenhouse gas that is the main cause of modern global warming, persists in the atmosphere for many thousands of years. Therefore, even if we completely ceased generating greenhouse gases today, future generations would still be impacted by global warming and climate change. Humanity has thereby "committed" itself to some degree of climatic change.

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Match the term in column 1 to the definition in column 2.

1. Himalayas
2. The Great Lakes
3. Amazon rain forest
4. Suez Canal

A. South America
B. Asia
C. North America
D. The Middle East

Match the term in column 1 to the definition in column 2.1. Himalayas2. The Great Lakes3. Amazon rain

Answers

Answer: Himalayas in asia

The Great Lakes in North america

Amazon rain forest in south america

Suez Canal in middle east

Explanation:

what physical feature most distinguishes biotite mica from muscovite mica

Answers

The physical feature that most distinguishes biotite mica from muscovite mica is their color. The color difference is due to variations in the chemical composition of the two mica minerals.

Biotite mica is generally dark brown to black in color, whereas muscovite mica is typically light-colored, ranging from colorless to pale shades of brown, yellow, or green. Biotite contains higher amounts of iron and magnesium, giving it a darker hue, while muscovite has lower iron and magnesium content, resulting in lighter colors. In addition to color, other physical features can help differentiate biotite mica from muscovite mica, such as their cleavage patterns and transparency. Biotite mica tends to have a stronger basal cleavage that allows it to be easily split into thin sheets, while muscovite mica has a perfect basal cleavage that enables it to be split into even thinner sheets.

Overall, the color distinction is a primary physical feature that sets biotite mica and muscovite mica apart, with biotite mica being darker and muscovite mica being lighter in color.

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Who did the Mughal empire fought with and who were their Allies??Answer ASAP pls

Answers

Answer:

Explanation:

While they did fight with the Safavids and Afsharids they relatively did not have any allies.(Unless you count trade with the European countries such as the Dutch, and Portuguese as allies) but even then that did not come until later when European empires transformed into Maritimes. In terms of allies though the Mughal empire was generally peaceful and under the rule of Akbar there were laws to end discrimination between the Hindus and Muslims. This is mostly because Akbar's wife was a Hindu.

Which of the following statements about the geographic theme of region is false?
A.
Regions are always unchanging and distinct in nature.
B.
Different perceptions of a region can make that region less defined.
C Aregion is an area on Earth that is defined by certain unifying characteristics.
D. Regions are based on human perceptions.

Answers

Answer:

regions are always unchanging and distinct in nature

what is the relationship between these nutrients and california’s fisheries? in other words, are fish more abundant or less abundant because of these nutrients? how? why? explain.

Answers

California's fisheries are primarily influenced by two types of nutrients: organic matter and inorganic matter. Nutrients, both organic and inorganic, can be beneficial to the marine ecosystem.

Organic matter, also known as "primary production," refers to nutrients that come from the decomposition of algae, animals, and other organic materials. Primary production feeds on other plants and organisms that are vital to the ecosystem. Inorganic nutrients, on the other hand, come from man-made and natural sources. Nitrogen and phosphorus are examples of inorganic matter. These nutrients are linked to a number of ocean processes, including harmful algal blooms and "dead zones."

To answer the question about whether fish are more or less abundant because of these nutrients, the answer is that it depends on the nutrients and the conditions in which they exist. For example, inorganic nutrients can promote the growth of phytoplankton and zooplankton, which are vital food sources for many types of fish. As a result, if there is an excess of these nutrients, fish populations can grow.

However, if inorganic nutrients are not balanced, they can lead to harmful algal blooms, which can be detrimental to fish populations. Algal blooms deplete oxygen, which can lead to dead zones, a condition in which fish and other marine life cannot survive.

The relationship between organic nutrients and fish is more complicated. While organic nutrients are beneficial for some types of fish, they can also contribute to other problems. For example, too much organic matter in the water can cause phytoplankton and zooplankton populations to grow too large, leading to oxygen depletion and dead zones.

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Which of the following statements best describes food production in the Middle East today? A. Most countries produce more food than they need, B. Most countries produce just enough food for their populations, C. Most countries have trouble producing enough food for their people, and must import food from other countries. Please select the best answer from the choices provided A OB 0 0​

Answers

B:Most countries produce just enough food for their people,and must import food from other countries.

Determine which energy source is described: advantage: can protect coasts from erosion. disadvantage: storms can destroy the machinery a. wave energy b. geothermal energy c. biomass energy d. tidal energy

Answers

An energy source is described: advantage: can protect coasts from erosion. disadvantage: storms can destroy the machinery, This is wave energy. This is further explained below.

What is wave energy.?

Generally, The motion of the waves may be converted into a source of renewable energy known as wave energy, which can then be used.

The motion of the waves may be converted into a source of renewable energy known as wave energy, which can then be used. There are a few different ways to capture the power of the ocean's waves, and most of them require installing generators of electricity on the water's surface.

In conclusion, This is a description of a source of energy: A benefit of this is that it may prevent the erosion of beaches. Wave energy has one major drawback, which is that severe weather might cause damage to the equipment.

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Imagine you have taken a flight north to new york city. Describe the sun rays at exactly noon on the same day of the year.

Answers

The correct option is D ; The sun's rays will never be directly overhead. The latitude of 23 ½ degrees north is known as the Tropic of Cancer. Above this imaginary line the sun's rays hit earth with decreased angles.

The path in which the sun moves across the sky usually varies from one season to another. This path is directly related to the position of sunrise and sunset, as the position of sunrise and sunset changes with the changing position of the sun.

Even though the sun appears to be at the highest position during the winter solstice where the sun is at the maximum height and receives the highest amount of daylight, the sun is never directly overhead in the state of New York.

Thus, the rays of the sun never falls directly overhead in this region. At this condition, i.e above the tropic of cancer, the sun's rays hit the earth with gradually decreased angles.

Hence, the correct answer is option (D).

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Full Question ;

Imagine you have taken a flight north to New York City. Describe the sun rays at exactly noon on the same day of the year.

A) The sun's rays would also be directly overhead. The sun's rays strike earth at 90 degrees throughout the hemisphere.

B) The sun's rays would also be directly overhead but only for one hour, twelve noon until one o'clock. After that the earth's movement distorts the angle of the sun's rays.

C) The sun's rays will be directly overhead in the Northern Hemisphere during the fall equinox. The movement of earth changes the angle of incidence of the sun's rays throughout the year.

D) The sun's rays will never be directly overhead. The latitude of 23 ½ degrees north is known as the Tropic of Cancer. Above this imaginary line the sun's rays hit earth with decreased angles.

IMAGINE YOU ARE PART OF THE FIRST INDIAN MANNED MISSION TO THE MOON. WHAT WOULD YOU DO AFTER YOU HAVE LANDED ON THE SURFACE OF THE MOON?(REMEMBER THAT THERE IS NO AIR,WATER AND GRAVITY IS LOW ON THE MOON.) HOW WOULD YOU DESCRIBETHE EARTH AS SEEN FROM THE MOON? MAKE A DAIRY ENTRY ON YOUR EXPERIENCE. (WOULD REALLY APRECIATE IF ANSWERED OR AT LEAST GIVEN ANY TIPS)

Answers

i would stay up there for the rest of my life

Explanation:

The production of textiles and food products are major industries for what countries

Answers

Answer:

Third World Countries

Explanation:

explain how earth's orbit changes global temperatures​

Answers

Answer:

Milankovitch

Explanation:

the Earth has natural warming and cooling periods caused by Milankovitch cycles or variations in the tilt and/or orbit of the Earth around the Sun

A map is an abstract representation of the real world in a 2-D format. It must have/possess the following information to be considered as a map.
Theme and date of the information shown on the map
Direction pointing the North
A scale & legend
projection type
All listed. Otherwise, it is not a map.

Answers

Maps typically include theme, date, north direction, scale, legend, and projection type. However, the essential requirement for a map is to abstractly represent the real world in a 2-D format.

Maps

While it is common for maps to possess certain elements such as a theme and date, a north direction indicator, a scale and legend, and a projection type, the presence of these elements can vary depending on the type and purpose of the map.

These elements serve to enhance the usability and understanding of the map, but their absence does not necessarily disqualify a representation from being considered a map.

Ultimately, the defining characteristic of a map is its ability to abstractly represent the real world in a two-dimensional format, providing spatial information and facilitating navigation and interpretation.

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The
region is characterized by flat grasslands.

Theregion is characterized by flat grasslands.

Answers

Answer:

I think Great plains

Explanation:

look it the answers on Google to me the great plains fits the most to your answer.

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Tamarisk University sells 6,900 season basketball tickets at $65 each for its 15-home game schedule If the gray whales were to become extinct due to overexploitation by whalers, what do you think would happen to the euphausiids in this community 3. How many molecules are in 0.043moles of HCI? your firm operates 40 weeks each year the annual demand is a constant 500 units the amount to order each week is 10 this is an example of a neutrinos travel at very high speeds (close to the speed of light). how does this fact imply that neutrinos cannot make up the bulk of the dark matter in galaxies? neutrinos travel at very high speeds (close to the speed of light). how does this fact imply that neutrinos cannot make up the bulk of the dark matter in galaxies? their speeds of neutrinos mean that neutrinos would escape from galaxies. their high speeds tell us that neutrinos interact only through the weak force and gravity. their high speeds mean neutrinos cannot have much mass. After a hurricane, a homeowner examine tree on hi property for damage. He think a 21-ft palm tree i leaning lightly from it original vertical poition. From a point 23 ft away, he meaure the angle of elevation to the top of the palm tree a 46 The scale on the horizontal axis is 5 s per division and on the vertical axis 9 m per division. What is the time represented by the third tic mark on the horizontal axis? Answer in units of s. review the information on arrhythmias links to an external site. on the american heart association website and select all true statements. 1840s12 5 pointsWhich of the following groups are most closely associated with Counterculture?O The Amish in PennsylvaniaThe Hopi Native Americans in New MexicoThe Hippies of the 1960s and 1970sThe Maori Indegenous People of New Zealand A common stock's _____ value is typically set at a low amount and has little meaning today other than being used to by some states to assess fees. Which three could be labeled as products on a model of aerobic cellular respiration in a human cell? The Nguyen family used to live in a neighborhood where they knew their neighbors and could depend on their neighbors to watch out for their kids. Recently, the Nguyens moved to a new neighborhood and they don't know their neighbors. Based on Leventhal (2018), the prediction that the Nguyen family will most likely experience a temporary reduction in monitoring their children aligns best with _____. Group of answer choices the early childhood model the adolescence model the cumulative exposure model the bioecological model you might propose a(n) program for your country if you wanted to hire a large number of manual laborers from neighboring countries to build a large dam or canal, with the understanding that they would not be granted any other privileges or legal status in your country, after the project is finished. a. guest worker b. unauthorized worker c. unauthorized hiring d. engineering obstacle e. chain migration Mr. Walker is looking at the fundraiser totals for the last five years. How does the mean of the totals compare to the median? the median is $1. 60 greater than the mean. The mean is $1. 60 greater than the median. The median is $2. 82 greater than the mean. The mean is $2. 82 greater than the median. a 3.0 percent coupon bond issued by the state of tennessee sells for $1,000. what coupon rate on a corporate bond selling at $1,000 par value would produce the same after-tax return to the investor as the municipal bond if the investor is in the 25 percent marginal tax bracket? a firm that has no ties to a specific nation or region and operates on a worldwide scale is called a national enterprise. A heat engine functions with 70.7 percent thermal efficiency and consumes 12.0 kJ from heat daily. If its efficiency were raised to 75.0 percent, how much energy from heat would be saved daily, while providing the same output? The nape area is defined as the area at the back part of the neck and consists of the hair below the: a projector has a focal length of 10.0 cm. after focusing, the lcd object is 10.5 cm from the lens. how many cm is the image screen from the lens? What occurred as a result of the glorious revolution and the english bill of rights of 1689?