Question

Which rock group makes up the least part of earth's crust?

Answer 1

sedimentary rocks makes up the least part of the earths crust

Answer 2

Sedimentary rocks make up the least part of the earth's crust.

Step-by-step explanation:

• The sedimentary rocks form a 'thin layer of the earth's crust' and form just about 5% of the crust.

• The metamorphic and igneous rocks cover about '95% of the earth's crust'.

• The sedimentary rocks are found near the 'surface of the earth' because these are formed by the processes that occur on the surface.

• The 'igneous and metamorphic rocks' are found in the 'earth's crust' because these are formed by processes that take place deep inside the earth.