Eutrophication is caused by _______.
Aan increase in nutrients
Ba decrease in nutrients
Cthe introduction of new species of animals
Dthe introduction of new species of plants
Which of the following is a way that humans impact rivers and streams?
Apollution
Bdams
Cflooding
Dall of the above
Aan increase in nutrients
Ba decrease in nutrients
Cthe introduction of new species of animals
Dthe introduction of new species of plants
Apollution
Bdams
Cflooding
Dall of the above