That is know as the Kuiper Belt.
Answer:
Nuclear Fusion that takes place between hydrogen atoms.
Explanation:
The energy comes from the sun and the sun is mostly made up of hydrogen and helium atoms. The sun generates energy from nuclear fusion.
Hydrogen is being converted into helium in the core of the sun. This is called nuclear fusion.
Here is the answer that would best complete the given statement above. <span>Even though the great rift valley encompasses lakes, volcanoes, and deep valleys, it is east Africa's HIGHEST area in the east. The answer would be the first option. Hope this is the answer that you are looking for. Have a great day!</span>