Answer:
core mantle crust
Explanation:
think of it like pizza the core of the pizza will be the cheese then mantle which is suace then the crust the outside
Answer:
They are solid at room temperature. They include a carbon single bond.
Explanation:
Look at this image- hope it helps. Because of the fact that they are not bent, they are packed tightly and solid, not liquid.
Millions of galaxies. (More than that, too.) but that would be your closest answer.