Amixture of iron and filings and sulfur will make the iron and sulfur atoms combine chemically

Which of the layers of the earth has the following three characteristics? i. it is made of molten rock. ii. it has currents that are constantly moving. iii. earth’s plates float on top of its currents.

The two types of plains are coastal plains and lowland plains

Under which condition below would u expect a coarse-grained intrusive rock like diorite to form?