AP Environmental Science Stb 3 F Explain the Environmental Effects of Excessive Use of Fertilizers and Detergents on Aquatic Ecosystems Questions

Explain why an indicator of water quality other than temperature could be altered by the golf course in forest B.
Accept one of the following:
- There could be a decrease in dissolved oxygen because fertilizer runoff leads to algal blooms/eutrophication.
- There could be a decrease in sedimentation/turbidity because the grass will decrease erosion compared to the clear-cut land.
- There could be an increase in nitrates/phosphates due to fertilizer runoff resulting in algal growth/bloom.

1 point

Explain how the aquatic organisms living in the lake illustrated in the diagram of forest B are likely to be affected by the new golf course.
Accept one of the following:
- Aquatic organisms would die off from a lack of oxygen created by the decomposition of algae/eutrophication.
- Aquatic organisms would survive at a higher rate because there is less sediment to suffocate them/clog their gills.

1 point