Respuesta :

Answer:

Coal is a non-renewable source of energy that takes many years to produce. - Metamorphic rocks are formed during intense heat and pressure to: Igneous rocks, sedimentary rocks and other metamorphic rocks. They can also be formed when lava so hot it changes the minerals flows over rocks.

Explanation:

coal is formed within the earth , and can take millions of years to form. it is a non-renewable resource meaning it can run out since it takes so long to renew (make more)