In an ecosystem, organisms use up chemical energy and most of the
energy is then lost to the
environment as
A. light
B. heat
C. photons

weathering is the answer.

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.

a- multicellular

b-eukaryotic

c-no cell wall

d-heterotrophic

e-autotrophic