Answer:
c. Energy from different sources leads to different types of rock. Energy inside Earth melts rock into liquid rock, but energy from the sun causes rock to weather into small pieces.
Explanation:
Energy is the ability to do work. The availability of energy in a system leads to diverse changes.
A rock is an aggregate of minerals and they are formed in diverse ways.
- It is the internal heat energy of the earth that causes rocks to melt into liquid rock. The liquid rock is called magma and on getting to the earth surface, it is a lava.
- Also, the surface processes driven by the external heat engine causes the weathering of rocks into smaller bits and fragments.
- Both the internal and external heat engine are energy sources that causes rocks to change from one form to another.