Question

multiple-choice question
where are diamonds formed?
deep in the mantle
on the surface of the earth
in the earths inner core.

Explanation:

Diamonds are formed deep within the Earth's mantle under high pressure and temperature conditions. The surface of the Earth does not have the necessary conditions for diamond formation, and the inner core is composed mainly of iron and nickel, not the environment for diamond creation.

Answer:

A. Deep in the mantle