Answer:
false Metamorphic rocks can only form from pre-existing rocks. Metamorphic rocks only form as a result of metamorphism of igneous or sedimentary rocks. Rock melting to form magma defines the upper limit of metamorphic processes. The oldest rock exposed to Earth's surface is a metamorphic rock.
Explanation:
hope this helps sorry if it doesn't have a good rest of your day :) ❤
Imperialism in the nineteenth century was primarily focused around Africa, thus resulting in cultural diversity in the continent.
1) water pollution
2) soil and water
3) watershed and the researchers know that the water pollution came from by 1- untreated smoke from factories
2- carbon dioxide emissions
