Biology, 13.10.2020 14:01 tay8556

What do you think will happen to the convection currents in the mantle if the interior of Earth eventually cool down?

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As the magma cools and solidifies, the convection currents will stop and the Earth will become geologically dead.

Explanation:
Convection currents within the Earth's mantle are caused by hot material rising upwards, cooling, then dropping back toward the core. These currents are thought to be the driving force for tectonic plate activity in the crust. The moving magma in the mantle carries the plates floating on top of it.
As a result of convection, the Earth's crust is constantly being created and destroyed. The average age of the Earth's surface is 2-2.5 billion years, which is about half the theoretical age of the Earth!
If the interior of the Earth were to cool enough for convection currents to stop, then the motion of the plates would cease, and the Earth would become geologically dead. Astronomers believe that this happened to Mars long ago.
Many of Mars's surface features suggest that at one point Mars had tectonic plate activity. Today, however, Mars is a static world and the only geologic activity is in the form of erosion and bombardment from space.

Your welcome☺️
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Answer from: idcatall5

I wish i could answer your qustion correctly!!!

Explanation:

I just did dis for points :>

Answer from: Quest

hey, what do you need . just post the question and i may be able to you : )

Answer from: Quest

c. earths continental crust is thicker than its lithosphere.

because, the lithosphere is the outermost layer of the earth/ 100 km thick and is defined by its machanical properties.the lithosphere contains oceanic and continental crust that varies in age and thickness across locations and geologic time. the lithosphere is the coolest layer of the earth in terms of temperature. the term lithosphere should not be confused with the use of "geosphere" which is used to indicate all of earth systems, including the atmosphere, hydrosphere and biosphere. the surface of the earth can be divided into the continental crust and the oceanic crust. the continental crust is made mostly of granite while the oceanic crust is made of basalt. the average thickness of the continental crust is 25 miles and the average thickness of the oceanic crust is 5 miles. three types of rock, igneous, sedimentary, and metamorphic, make up the surface of the earth. that's why 3 option is preferable.

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