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sleet_krkn [62]
3 years ago
15

How is the composition of rock on the seafloor different than rock on the land?

Geography
1 answer:
kvv77 [185]3 years ago
3 0

Oceanic crust is dominated by mafic and ultramafic intrusive igneous rocks whereas continental rocks are dominated by granitic (felsic) intrusive igneous rocks.

The difference in density has an impact on isostacy of crust floating on the semi-fluid upper mantle (asthenosphere), with continental crust (about 2.7g/cm3) rising or floating above oceanic crust (about 3.5 g/cm3).  

The continental crust is by far the older of the two types of crust.

The mantle, oceanic crust, and continental crust all have different compositions due to a process called partial melting.

Because continental crust is less dense than oceanic crust it floats higher on the mantle, just like a piece of Styrofoam floats higher on water than a piece of wood does.

Answer:

Explanation:

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Guanacos are a species of camel native to the South American region, especially the Andes area from Peru to Chile and Argentina. Its habitat is the high altitude areas around the Andean mountains, and especially the forests located in the valleys of these mountains, characterized by their dry climate and low-lying vegetation.

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1. What type of heat transfer causes the movement of tectonics plates.
creativ13 [48]
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4 0
4 years ago
The climate in northern Russia determines the vegetation is mostly<br> what?
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The climate in northern Russia determines the vegetation to be of tundra type.

Explanation:

Northern Russia is on a very high latitude, and very close to the North Pole. Because this area receives very little and very scattered sunlight, it is very cold for most of the year. That has resulted in the area being frozen for most of the year, the growing season to be very short, and the soil quality very poor.

The vegetation that exists here has had to develop special adaptations because of the extreme conditions. It is vegetation of tundra type. This vegetation is usually very small, from few mm to few cm. The requirements for nutrition are very low, with very small roots, and adaptations on the surface to prevent water evaporation and freezing. Such plants are:

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Learn more about the tundra biome brainly.com/question/14169925

#learnwithBrainly

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3 years ago
Where can the majority of Earth's freshwater be found?
beks73 [17]

Answer:

A. In polar ice caps

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In ice caps and glaciers, over 68% of the earth's fresh water is found, and in groundwater, it is found only more than 30%. In the surface water of lakes, streams and swamps, we consider only about 0,3% of our fresh water.

I am joyous to assist you anytime.

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