Question

Which of these best describes Earth's mantle? (3 points)

a
Most dense layer, consists of the outer and inner parts

b
Thinnest under the oceans and thickest under continents

c
Middle layer, density increases with depth as pressure increases

d
Least dense layer overall, consists of two layers of different ,

Answer 1

The Earth's mantle is a middle layer whose density increases with depth as pressure increases, extending down to about 2900 kilometers and capable of slow flow due to high temperatures and pressures. The correct answer is option: c) Middle layer, density increases with depth as pressure increases

Step-by-step explanation:

Among the options provided, c Middle layer, density increases with depth as pressure increases best describes Earth's mantle. The mantle indeed is a middle layer of the Earth, and its density does increase with depth due to the increasing pressure.

As we move deeper into the mantle, the weight of the overlying materials compresses the rocks below, making them denser. The mantle stretches from the bottom of the crust to a depth of approximately 2900 kilometers. It's more or less solid but capable of flowing slowly due to the high temperatures and pressures within.