Question

which changes occur in the composition of the earth layers from the core to the surface......A. The material is hotter and less dense....B. The material is cooler and denser.....C. The material is hotter and denser......D. The material is cooler and less dense

Answer 1

I believe B. the material is cooler and denser would be correct.

The colder something is, the more density it has. Earth's core is too hot to be very dense, so that's why I would go with B.