3) two parts hydrogen and one part oxygen, this polar molecule is responsible for life on earth.

Need an answer asap 45 points and brainlest to the first person to answer why do scientific theories, such as biological and chemical evolution, represent the strongest explanation of the changes observed in the fossil record. must be in sentence form how can scientific theories on evolution and the fossil record change over time? must be in sentence form

What best explains the inability for life to exist in earth early atmosphere

Me with biology endocrine system crossword also image left i need with hw