The closest is 25 percent
Answer:
Helium
Explanation:
The sun produces energy by fusing hydrogen atoms into helium atoms. This is a nuclear fusion that occurs at the suns core.
Answer:
It may change structure do to human activity.
Explanation:
Answer:
Science is the study of living organisms and non living things.
Chemistry is a branch of science that deals with study of matter in relation to its composition.
Physics is the branch of science that deals with study of matter and its derivatives or quantities.
