Determine who has made the correct statement.
betty said biologists never use the fossil record to determine the age of the earth.
cate said only geologists use the fossil record to determine the age of the earth.

betty is correct.
cate is correct.
neither is correct.
both are correct.

this would be a math

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.