Problem 8
What might happen if heated water is released to a body of water? A. oxygen levels decrease B. oxygen levels increase C. \(\mathrm{pH}\) decreases D. \(\mathrm{pH}\) increases
Problem 8
Fill in the blanks with the correct word or words. What combines with moisture in the air to form acid rain? A) ozone C) lead B) sulfur oxides D) oxygen
Problem 9
Which of the following is a nonpoint source? A) runoff from a golf course B) discharge from a sewage treatment plant C) wastewater from industry D) discharge from a ditch into a river
Problem 9
Acid rain has what affect on the \(\mathrm{pH}\) of natural lakes and streams? A. it increase the \(\mathrm{pH}\) B. it decreases the \(\mathrm{pH}\) C. it stabilizes the \(\mathrm{pH}\) D. it doesn't affect the \(\mathrm{pH}\)
Problem 10
List three pollutants that can be removed by a sewage treatment plant.
Problem 10
What is the largest source of water pollution in the United States? A) sediment C) heat B) metals D) gasoline
Problem 11
What is the pH of acid rain? A) less than \(5.6\) B) between \(5.6\) and \(7.0\) C) greater than \(7.0\) D) greater than \(9.5\)
Problem 12
What kind of pollution are airborne solids that range in size from large grains to microscopic? A) \(\mathrm{pH}\) C) particulate matter B) ozone D) acid rain
Problem 13
Why is it better for the environment for countries to work together to reduce pollution?
Problem 13
Which of the following causes algae to grow? A) pesticides C) metals B) sediment D) fertilizers
