Ocean floor subducts under continents because:_________.
i. the ocean floor is made of mafic material and is therefore more dense than continental material. ii. the weight of the continents is so great that they push the ocean floor material downward. iii. the ocean floor is made of felsic minerals and is heavier than continental material. iv. the ocean floor has a lower density and therefore sinks more easily. v. both i and ii

Answers

Answer 1

Answer:

i.

Explanation:

the ocean floor is made of mafic material and is therefore more dense than continental material:

When an oceanic plate converges with a continental plate, the oceanic crust will always subduct under the continental crust; this is because oceanic crust is naturally denser.


Related Questions

why should we care about immigration

Answers

Answer:

immigration help to a country to grow their labor or taxes

Explanation:

Immigrants also make an important contribution to the U.S. economy. Most directly, immigration increases potential economic output by increasing the size of the labor force. Immigrants also contribute to increasing productivity. 

One of the most destructive hazards associated with composite volcano eruptions are super-heated gases infused with incandescent ash and larger lava fragments racing down steep volcanic slopes called ____________________.

Answers

One of the most destructive hazards associated with composite volcano eruptions are super-heated gases called pyroclastic flows.

What are pyroclastic flows?

The pyroclastic flows are harmful mixtures of warmed rocks and gases released during volcanic eruptions.

These pyroclastic flows are very harmful because they reach very high velocities (up 710 km per hour).

In conclusion, one of the most destructive hazards associated with composite volcano eruptions are super-heated gases called pyroclastic flows.

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What is this bug? Just asking

Answers

This is a bean plataspid, otherwise known as a type of stink bug.

For any of your unknown bug concerns, I highly recommend downloading the “picture insect” app as it can identify any bug you have a photo of!

Discuss the implications of location , shape and size of ethiopia on climate , socioeconomic and political aspects

Answers

The implication of location shape and size of Ethiopia on their climate , socioeconomic and political aspects are explained below.

The location shape and size of Ethiopia and its Implication

A lot of Countries of the World are known to have different kinds of shape, location and sizes. In terms of shape, it is classified  into compact, fragmented, elongated and others.

Note that  the above shapes have implications in regards to the defense of the country. They also affect the administration and economic integration that occurs in the Ethiopia country.

The implications of location of Ethiopia serves as a form of strategic importance in regards to its closeness to the Middle East, Europe and also the Asian markets.

Note also that Ethiopia is said to be landlocked and it is one that borders Eritrea, Somalia, Kenya, etc. and as such, it often uses the neighboring Djibouti's as the central port for its works.

The benefit  of large size of Ethiopia is that it brings about a lot of agro-ecological zones and there are lots of variety of fauna and flora.

Note that it also have high amount of arable land, lots of mineral and different ethnic groups.

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Tropical climates exist between which of latitudes

Answers

Tropical Climates are between latitudes of about 23°05′ north and south of the equator

Why are deep focus earthquakes (those originating hundreds of miles below the surface) associated with subduction zones, but not with divergent boundaries and transform boundaries

Answers

Answer:

Because divergent and transform zones are close to the surface where spreading is occurring, while subduction zones, where the subduction plates are plunging down below the surface.

Explanation:

Western countries share the blame for the failure to complete the Doha round of trade talks.

In this sentence, complete means to:
protect against a challenge or attack
carry out
deal with in a routine way
designate by an identifying term

Answers

In the sentence above, complete means to: B. carry out.

What is trade?

Trade is a strategic process that typically involves the buying and selling of goods and services between a producer and the consumers in a particular geographical region or country.

In this scenario, western countries share in the blame for the failure to complete (carry out) the Doha round of trade talks.

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which of the following statements about monsoons are correct

Answers

The true statement about monsoons is that weak monsoon season can lead to drought and starvation.

What is a Monsoons?

This is a seasonal reversing wind that is known for corresponding changes in precipitation because of seasonal changes in atmospheric circulation and precipitation.

Hence, the true statement about monsoons is that weak monsoon season can lead to drought and starvation.

Therefore, the Option C is correct.

Missing options "A) Monsoons can cause devastating landslides and floods. B) Heavy monsoons increase agricultural output. C) A weak monsoon season can lead to drought and starvation. D) All of the above

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This map is a (an) ____________ projection known as a (an) __________ map. One of it's strengths is preserving true direction which is good for _______________. g

Answers

Answer:

This map is a (above)projection known as a (land)map .

which is good for (direction)

Cliff that shows layers of sedimentary rock in the area shifted along a fault what can the geologist conclude about geologic history of the area where fault was found

Answers

The geologist has come to the conclusion that the fault in question predates the deposition of sedimentary rock. This is further explained below.

What is a sedimentary rock.?

Generally, Along with igneous and metamorphic rocks, sedimentary rocks are considered to be one of the three primary kinds of rocks.

In conclusion, The geologist may deduce from the analysis of the fault that it existed before sedimentary rock was formed.

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Answer is c:The fault occurred after the sedimentary rock was deposited.

Explanation:i just took the quiz

What type of environment is shown in the image?

An environment with land covered in snow and an animal with white fur

Mountain
Swamp
Tundra
Wetland

Answers

The environment shown is the Tundra

An environment with land covered in snow and an animal with white further. Type of environment is shown in the image is Tundra. Thus, option (c) is correct.

According to the given image, the environment was shown on the Tundra. The term tundra refers to the wilderness, unwooded community with very little indecisive quantity.

The tundra is spread over with snow for most of the year and has a short maturation time period. Very few living organisms cause their residence in the tundra due to the unpleasant environment.

Tundra systems are unwooded regions found in the Arctic Zone and on the tops of natural elevation, where the climate is cold and breezy, and rainfall is scant.

As a result, the significance of the type of environment is shown in the image are the aforementioned. Therefore, option (c) is correct.

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The Kangra and Kullu valley are located in:
(a) Uttarakhand
(b) Jammu and Kashmir
(c) Himachal Pradesh
(d) Uttar Pradesh

Answers

the answer is C: Himachal Pradesh

the time at 20°W longitude is 2 am. what is the time at 90°E longitude?​

Answers

Answer:

6 hours

explain

We know that each 15 degree makes an hour

15 degree = 1 hour

90 degree = 90/15=6 hours

Note: when places are located to the East of pm or GMT, the time will be ahead of PMT or GMT and vice-versa

So, 90 degree is to the east of PM, time will be

2:00pm +6 hours = 8:00pm on 90 degree east

Thank you!

Analyze the chart below and answer the question that follows.
A 3-column table with 6 rows. Column 1 is labeled Country with entries Norway, Luxembourg, Dominica, Turkey, Colombia, Angola. Column 2 is labeled Rank by H D I with entries second, ninth, seventy-seventh, seventy-sixth, eightieth, one-hundred fifty seventh. Column 3 is labeled Rank by G D P with entries twenty-third, sixty-seventh, one-hundred eighty-third, seventeenth, thirty-eighth, fifty-ninth.
Data courtesy of the UN Development Programme 2006-2008 and World Bank 2009
The chart above compares measures of development using the HDI and GDP. Why might Turkey rank lower in the HDI indicator even though it has a high GDP?

A.
Turkey has a lower GDP than comparable countries in the HDI ranking.
B.
Turkey must increase its HDI to have a higher GDP ranking.
C.
Turkey is only compared to other European countries in GDP, not to the world, as it is in the HDI.
D.
Turkey may struggle to provide adequate education or health care, or it may have a lower life expectancy.

Please select the best answer from the choices provided.

Answers

Answer:

B

Explanation:

turkey must increase its HDI TO have a higher GDP ranking

To deal with the challenges posed by the midlatitude temperate climate, Europeans have developed a sophisticated system of:

Answers

To deal with the challenges posed by the midlatitude temperate climate, Europeans have developed a sophisticated system of Drainage system for their houses and communities.

What is Drainage system?

Drainage system serves as the system that allows easy flow of water so as to avoid blockage of water which can lead to serious erosion.

However, Europeans have developed a sophisticated system of Drainage system so as to overcome challenges posed by the midlatitude temperate climate.

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give four reasons why the interior of the earth is hot​

Answers

Explanation:

♤decay of radioactive elements

♤ leftover heat from planetary formation

♤heat released as the liquid outer core solidifies near its boundary with the inner core.

Answer:♤decay of radioactive elements

♤ leftover heat from planetary formation

♤heat released as the liquid outer core solidifies near its boundary with the inner core.

Explanation:

No thermocline exists in high-latitude regions because there is little temperature difference between the top and bottom of the water column. In such a situation the water column is said to be ________.

Answers

According to the research, when there is little temperature difference between the top and bottom of the water column is said to be isothermal.

When a water column is said to be isothermal?

It is said isothermal when the relationship between the water content and the equilibrium that joins the points, present the same temperatures in the unit of time considered.

That is, the temperature of the system remains constant, being a reversible change in a thermodynamic system.

Therefore, we can conclude that according to the research, when there is little temperature difference between the top and bottom of the water column is said to be isothermal.

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What is the most important data for studying the potential for flooding along a river for several decades into the future

Answers

Discharge data from stream gauges are the most important data for studying the potential for flooding along a river for several decades into the future.

Move level (or water level) and streamflow (or discharge) are measured at locations called streamflow gaging stations. The stage is measured and recorded continuously by means of electronic devices.

Discharge, that's every now and then known as streamflow or water drift, is described because the charge at which an extent of water passes with the aid of a selected place. Discharge and gage peak are associated values.

It's far crucial due to its impact on water exceptional and on the dwelling organisms and habitats in the stream. large, unexpectedly flowing rivers can receive pollutants discharges and be little affected, while small streams have less capability to dilute and degrade wastes.

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Why are the Mediterranean and Black Seas prone to heavier loads of pollution than the Atlantic Ocean and North Sea

Answers

They are landlocked and do not have the ability to flush themselves out quickly which results in contamination of European sea. and the    Mediterranean sea .

Contamination of  Mediterranean seas

The report shows that all four regional seas in Europe have a large-scale contamination problem, ranging from 96 % of the assessed area in the Baltic Sea and 91 % in the Black Sea, to 87 % in the Mediterranean and 75 % in the North-East Atlantic Ocean. The coverage of the assessed area is mostly good but it varies considerably between the four seas and remains limited in the offshore waters of the Mediterranean Sea.

Overall, contamination is declining in all four seas, though the insecticide DDT appears to be at best stabilising in the Mediterranean Sea. The concentrations of some well-known contaminants, such as cadmium and mercury, appear to be declining but in many areas not enough to meet agreed thresholds.

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What does it mean to be free





/

Answers

Answer:

Freedom means you are free to choose, and free from boundaries

Explanation:

Can I have brainliest

It means to have full control of yourself and have nothing to stop you!

"Igneous rocks that crystallize underground are ______________ rocks, while _____________ rocks crystallize after emerging from a volcanoe"

Answers

Instrusive and Extrusive are the correct answer respectively.

Intrusive Rocks

Intrusive rocks are igneous rocks that form when magma cools under the earth's surface. They can be identified by their large interlocking crystals, which grew large due to their slow cooling. Granite is a common type of intrusive rock that is distinguished by the presence of blocky pink potassium feldspar crystals.

Diorite, granite, and pegmatite are examples of intrusive igneous rocks.

Extrusive Rocks

Extrusive rocks are formed on the surface of the Earth from lava, which is magma that has emerged from underground. Intrusive rocks are formed from magma that cools and solidifies within the crust of the planet.

Basalt, tuff, pumice are examples of extrusive igneous rock.

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Winds are named based on Group of answer choices the direction from which they originate. the altitude at which they occur. the direction in which they are blowing. the scientist who first described them

Answers

Winds are named based on the direction from which they emanate.

What factor determines how winds are named?

Basically, winds are named judging from the direction from which a particular wind has originated.

For instance, when a wind originates from the west coast, it is likely that its name would indicate that it started from the west.

In essence, the correct portion in this case, is the one that indicates the direction of the wind being a major factor that would be considered when forming its name.

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If the distance between two points is 2cm on a map scale of 1:100000, what will the distance be on a 1:50000 map

Answers

Explanation:

2÷1:50000=__________________cm

Which type of rock may result when sedimentary rock is exposed to extreme heat and pressure?.

Answers

Answer:

Metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form. Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.

Explanation:

Describe the composition and the main parts of a comet.​

Answers

A comet, often known as a filthy snowball, is an ice mass coated with dust and tiny rocky fragments. The comet heats up and emits gases as it approaches the sun, a process known as outgassing. The so-called comet tail results from this.

There are 5 parts of a comet:

The Nucleus, also known as the core, is a solid mass that is largely formed of ice and dust with a little black biological stuff thrown in. It is just a few kilometers broad.A comet's nucleus is surrounded by a spherical envelope of gas called the Coma, which is around a million kilometers large.The comet releases hydrogen as it absorbs UV radiation, which escapes the comet's gravity and forms the hydrogen cloud.the Dust Tail: The sun's radiation drives dust particles out of the coma. The tail so constantly faces away from the sun. The length of this tail might reach 10 million kilometers. the Ion Tail: Some cometary gases become ions when charged solar particles interact with them, creating an ion. The ion track, which is often smaller than the dust path, can be 100 million kilometers long.

The southwestern part of
Russia is very
populated.
A. sparsely
B. thinly
C. densely

Answers

Howdy

The southwestern part of Russia is very thinly populated.


What happens to Beryl's intensity of precipitation after it makes landfall on Florida's coast between 5/27 and 5/28

Answers

After it made a landfall on Florida's coast between 5/27 and 5/28, Hurricane Beryl's intensity of precipitation lost strength and became a tropical depression when it crossed northern Florida with a decreased forward speed.

What is Beryl?

Hurricane Beryl is the name given to a Tropical Cyclone, a long-lasting one that was the third-earliest Atlantic hurricane to ever form in the primary development zone.

Thus, it is right to state that after Beryl made a landfall on Florida's coast between 5/27 and 5/28, Beryl's intensity of precipitation lost strength and became a tropical depression when it crossed northern Florida with a decreased forward speed.

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The thermal equator during the month of July trends _________over continents and ________________ over the oceans.

Answers

Answer:

Ans:

Explanation:

the thermal equator during the month of july trends 20°-25°N over continents and ____________ over the oceans

sorry I didn't got that

hope it helps

Why ethiopia still remain to be the least urbanized country in the world and what are the major problems of urban centres of ethiopia

Answers

The Ethiopian nation is the least urbanized due to the fact that they like to focus on a peasant type of lifestyle that revolves around agriculture.

Why Ethiopia is the last developed?

This is due to the fact that the nation is a self sufficiency nation that is based on agriculture. This is known to encourage the peasant lifestyle.

The slow urban growth is aqlso due to the Italian invasion that the nation had in the year 1935.

The major issues they have are lack of access to jobs and infrastructure.

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1/10
Find the missing side of the right triangle. Leave
answer in simplest radical form.
If the legs of a right triangle are 3 and 4, then the
hypotenuse is

Answers

Explanation:

if the right triangle are 3and 4 then the hypotenuse should be 12 . So you multiply 3×4=12

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