: Many times, students struggle with the difference between the terms allele and gene. How would you explain the difference of these two terms in a way that is memorable to you?

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.

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i dont know it at allnow im just getting points at this pint