D makes the most sense, the rest of them aren’t really logical.
Answer:
it stores and controls water in the cell
Explanation:
A balance of organic and inorganic materials
Answer:
If the hydronium concentration increases, the pH decreases, causing the solution to become more acidic. This happens when an acid is introduced. As H+ ions dissociate from the acid and bond with water, they form hydronium ions, thus increasing the hydronium concentration of the solution.
Are caused by the tilt of the Earth's rotational axis away or toward the sun as it travels around the sun
