Explanation:
The hydrologic cycle describes the pilgrimage of water as water molecules make their way from the Earth's surface to the atmosphere, and back again. This gigantic system, powered by energy from the sun, is a continuous exchange of moisture between the oceans, the atmosphere, and the land.
No, amino acids are not alive.
The variety of traits a species has best defines genetic diversity.
Addition of a nucleotide onto a DNA is an endergonic reaction. In such reactions, the energy is provided by ATP.
ATP is the immediate source of energy for any endergonic reaction occuring in the body. Reactions such as addition of nucleotides are endergonic and anabolic reaction that is, these reactions consume energy which is provided by ATP.