Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth.
Answer AND Explanation:
Darwin describes natural selection as a process whereby nature selects those organisms that have favourable characteristics to be parents of the next generation. The individuals possessing the favourable traits are better suited to the prevailing environmental conditions. This enables them to stand a better chance to survive in the struggle for existence due to limited resources.
The three most common elements are oxygen, carbon, and hydrogen
