They are mostly habittated to watter because they requres oxygen more from water or there organ setup to do it works properly under water.
Explanation:
Oxygen is the answer. (option B)
The wilderness act of 1964 established the national wilderness preservation system and in it. Your answer is C
Answer:
difference in density
Explanation:
We know that the high central density suggests the earth must be rich in nickel and iron and that much of the core must be liquid. This lower-density air then rises and is replaced by cooler, higher-density air. The result is atmospheric circulation that drives the weather and climate through redistribution of thermal energy.
Answer:
Dam
Explanation:
A dam is built to control water through placement of a blockage of earth, rock and/or concrete across a stream or river