Multiple Choice
What class of pollutant can cause excessive growth of algae?
A) sediments from land erosion
B) oxygen-demanding wastes from sewage and animal feedlots
C) plant nutrients from industry,farms,and households
D) organic chemicals from industry,farms,and households
E) infectious agents from human and animal wastes
Correct Answer:

Verified
Correct Answer:
Verified
Q10: The creation of dams and reservoirs has
Q90: One of the most serious overdrafts of
Q91: Briefly explain how ecological sewage treatment systems
Q92: What percentage of the water that people
Q94: This system of dams and reservoirs on
Q95: We can say that the United States
Q96: The desalination process called _ (or microfiltration)
Q97: Explain the advantages and disadvantages of large
Q98: Why would an aquifer be considered nonrenewable?<br>A)
Q99: The porous layers of sand,gravel,or rock in