Answer:
Chemical evolution is the formation of complex organic molecules from simpler inorganic molecules through chemical reactions in the oceans during the early history of the Earth.
It the first step in the development of life on this planet
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Answer:
Valence electrons are basically electrons in the outermost shell of an element.
The structure<span> of cells is linked to </span>their function<span>. For example, lung cells are very thin, which allows gases to diffuse easily through the cells</span>
A. The process of photosynthesis is energy-storing because the process converts light energy into chemical energy, which is stored in the bonds of glucose.