Answer:
it increases oxygen levels and decrease carbon dioxide levels
Answer:
A. The rock was made from more than one type of material
C. Sediments and other matter were deposited in layers before lithification
Pure water has a pH of 7, while acidic solutions will ALWAYS have a pH lower that 7. ~Your Welcome
Answer:
no 1 ok
Explanation:
because it controls the raye pf breathing so
