Sources of heat from inside earth is radioactive decay and residual heat.
Answer:
A mass
Explanation:
I learned it in 8th grade.
False, I'd say. Mammals usually adapt based on environment. Now, I know predators are "apart" of the environment, but I don't think that'd be it. I'd bet more money on saying mammals evolve based on environment adaptation. Sorry if I didn't answer your question or if I didn't get my point across well.
Answer:
Carbon source.
Explanation:
The ocean is storing carbon, it is a carbon source.
It's storing the carbon until it's needed in the carbon cycle.