Explain how consumers are divided into groups

Consumers are divided into different groups depending on how many steps they are from the primary producer

Explanation:

For example, grass is  a producer. If a rabbit eats it, it is a primary consumer. Whatever eats that, for instance a hawk, will be a secondary consumer, and so on.

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.

light dependent reactions:

light independent reactions:

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