Eutrophication is caused by a. an increase in nutrients b. a decrease in nutrients c. the introduction of new species of animals d. the introduction of new species of plants which of the following is a way that humans impact rivers and streams? a. pollution b. dams c. flooding d. all of the above
All houses are built according to safety standards, so it is not important to consider injury prevention while at home. select the best answer from the choices provided.otf