Assignment Problem: Water Pollution-Plant Nutrients
First, review the biogeochemical cycles from chapter 2 - pages 39-45.
Activity - Water Pollution from Nitrates
Question 1: Why do we have to fertilize crops with synthetic N but natural systems don't? (Hint - recheck the nitrogen biogeochemical cycle).
Question 2: Name 4 ways humans pollute waterways with nitrogen.
Question 3: There are 6 "rules" given for fertilizer use, name your favorite three.
Question 4: Excess nitrates in drinking water can cause 3 medical problems in humans. Name and define them.
Question 5: What is a manure "lagoon"?
If you do not have access to the book website, do the following for the nitrates part of this assignment: Answer the questions posed below:
Question 1: What does "10 parts per million" really mean?
Question 2: Where is the main reservoir of P in its biogeochemical cycle? (i.e. where is most of it)
Question 3: What are the main sources of P pollution in aquatic systems?
Question 4: What is the source for the P in fertilizers? See if you can determine how is obtained and where in the world it occurs.
Question 5: What is an "algae bloom" and why can they be very bad for an aquatic ecosystem?
Question 6: Are all algae blooms a bad thing? Explain.
Question 7: What is Atrazine? And, what are its associations with water pollution?
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