True or False: Hydrogen atoms fuse easily to make helium under normal conditions, here on Earth or anywhere.

False.

Explanation:

Hydrogen atoms do not fuse under normal conditions to form helium.
The question is talking about thermonuclear reaction which takes places in Sun, i.e two atoms combine to form a larger atom.
Also, this looks like a question from Physics instead of Biology.

the answer is: they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur twice a year in the spring and fall.

answer; ///(b) it is composed of four protein chains and four heme groups;