Two people are standing together in an elevator, but they do not speak to each other or look each other in the eye. erving goffman called this type of interaction

answer; civil inattention;

the answer is yes, they are born/created, then they grow to their limit then produce offspring, then die.

affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.