3
ALMultiple Choice

Water Pollution

Question 3 • TCISD-Environmental Systems B IC

Which of the following activities is most likely to result in sediment pollution?

Answer
A
cutting down trees
B
pouring motor oil down the drain
C
excess fertilizer use
D
none of the above

Explanation

Cutting down trees removes vegetation that holds soil in place. Rain can then wash the loose soil into streams and lakes, causing sediment pollution. Pouring motor oil down a drain causes chemical pollution, while excess fertilizer mainly causes nutrient pollution.

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