What happens when rock is pushed deeper into the earth?

A. Decreasing temperatures will break up the rock into smaller particles.

B. Decreasing pressure will cause layers of rock to increase in size.

C. Increasing temperatures will harden the rock.

D. Increasing temperatures may partially melt the rock. Increasing temperatures may partially melt the rock.

Option D, Increasing temperatures may partially melt the rock

Explanation:

The earth in its internal layer is extremely hot. Whenever a rock is pushed deep into the earth crust, its form changes due to extreme heat and pressure.

Usually, these rocks starts melting with increasing depth and remain in molten state as magma.

Along with this, extreme heat causes weathering of rocks along with partial or complete melting.

Hence, option D is correct.

C

Explanation:

Rock being compressed together with heat.