Question

question 18 of 20 which of these events is a likely result of chemical water pollution? a. fish die from lack of oxygen due to an algal bloom. b. rainbow trout disappear from a stream because of high water temperatures. c. sediment particles floating in water clog the gills of fish. d. algae are killed by solvents that have run off into a pond.

Explanation:

Chemical water pollution involves the introduction of harmful chemicals into water bodies. Solvents are chemicals, and when they run - off into a pond and kill algae, it is a result of chemical water pollution. Algal bloom due to nutrient pollution (not necessarily chemical in the sense of solvents etc.) can cause fish to die from lack of oxygen. High water temperatures are a physical factor, not chemical. Sediment particles are physical pollutants, not chemical.

Answer:

D. Algae are killed by solvents that have run off into a pond.