Choose the false statement about rocks. a. they are natural substances. b. they must form from solid materials. c. they can form above or below ground. d. they are made of one or more minerals.

The answer would be B.

Explanation:

-A is true because they are formed naturally by earth.

-B is incorrect because rocks don't form from solids, the form from sand being compressed for years It's not just solids that make rocks, It's much more. It's water, rocks, compression, etc.

-C is true because, certain rocks form above ground and rocks that are made from lava are above ground.

-D is true because, rocks are made from sand, soil, etc. It's a long process but rocks are made from various minerals.

      n

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.