Which factor would have the greatest effect on the flow of energy into an ecosystem?

a
a large increase in the number of carnivores
b
a large decrease in the amount of sunlight available
c
a small increase in the number of decomposers
d
a small decrease in the amount of minerals available

A small decrease in the amount of minerals available.

Explanation:

hope it helps.

bc blah

explanation:

bc blah

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.