Question

1. choose the best answer.

— is molten fluid rock from the mantle.
magma aqua bedrock putty

1. choose the best answer.

why is the earths core so hot?
the core absorbs heat through thermal transfer.
it is made of radioactive material that burns at high temperatures.
particles in the iron and nickel are packed tightly into a solid state as the weight of the world presses down on it.
nuclear fission takes place at the core.

Explanation:

For question 6, magma is molten rock from the mantle. For question 7, nuclear fission occurs at the core, generating heat.

Answer:

1. Magma
2. Nuclear fission takes place at the core.