The fossis record shows that the types of living things on earth changed over time. Which fossil would most likely be found in the oldest rock layer

a- mastodon

b- trilobite

c- saber tooth cat

d- flying dinosouar

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.