Which of the following is a major difference between carbon and the other main elements in organic matter? A. Living things contain more carbon than any other kind of element
B. Carbon readily forms molecules with other elements
C. Atoms of carbon are found in long chains and rings
D. Carbon atoms contain equal numbers of protons and electrons

poor water quality affects most estuarine organisms, including commercially important fish and shellfish. the pollutants that have the greatest impact on the health of estuaries include toxic substances like chemicals and heavy metals, nutrient pollution (or eutrophication), and pathogens such as bacteria or viruses.

bacteria could be both, harmful and to us. harmful bacteria could make us sick and probably even by getting the chances of getting a disease, but good bacteria fight it off with your immune system. there is always bacteria everywhere we go. we need to make sure to wash our hands after using the restroom, before eating, after eating, after petting an animal too. so you see, bacteria is everywhere and is harmful or . i hope this . : ) : ) : )