When it comes to energy, saying that something is cleaner than coal means that it does not harm the environment as much as burning coal does and it is usually sustainable. The clean is the same one in the term "clean energy"
The monomers of a protein are amino acids
The answer is A.) Nucleus
Answer:
I would start on Evaporation. I will then have to go through condensation, then precipitation, then a surface runoff then into groundwater which will start the evaporation process all over again :)