The answer would be B.
H2O is polar and forms hydrogen bonds with itself but O2 is nonpolar and can only form weak(van der waals) interactions.
Mitosis would be skin cells, bone cells, and organ cells. Meiosis is sex cells, so sperm and egg cells.
Your answers should be answer choices A.) The Nile River deposits fertile soil in the delta and E.) The Nile River supplies water and nutrients to the delta. Each of the other answer choices either are false (In the case of choice D), or would be harmful to life, such as depositing salt and eroding the delta. Hope this helped!
