HEL Which of the following are reasons the inside of the Earth is hot? (check all
that apply) *

A. nuclear fusion reactions
B. volcanoes
C. it's still hot from the big bang
D. the earth's crust has insulated it from cooling

A. nuclear fusion reactions

C. it's still hot from the big bang

Explanation:

The inside of the earth is hot due to some reasons. This heat provides the internal energy the drives processes within the earth interior. Here are some of the ways in which the heat has accumulated:

These are some of the sources of the earth's internal heat.

explanation:

considering the bohr theory, the type of connection that requires the transfer the answer conuldn't be right

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.