(Q006) Hot, solid rock in the Earth's crust Group of answer choices is cooler than surface lava because of the pressure of overlying rock. melts at a higher temperature if volatiles such as water and carbon dioxide are added. may melt if heat is transferred to it from hot mantle rock rising up into the crust. maintains uniform composition as it melts and becomes magma.

Hence the correct option is may melt if heat is transferred to it from hot mantle rock rising up into the crust.

Explanation:    

A hot, solid rock within the crust may be a solid outer region of the world, Underneath the world Structure, lies the mantle which consists of solid rocks especially granite and basalt. The mantle is extremely hot and should melt if heat is transferred thereto from hot mantle rock rising up into the crust, therefore, forming molten magma. it's going to even be hotter (and not cooler because it was stated in option A which makes it the incorrect answer) than the surface lava due to the pressure of the overlying rock. As such, This effect is seen when an eruption occurs.