Which of the following substances would not contribute to the eutrophication of a body of water?
A. human or animal wastes
B. agricultural herbicides
C. phosphates from detergents
D. agricultural fertilizers
Answer: B
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Physical oceanographers design and build oil platforms, ships, harbors, and other structures that enable us to use the
ocean wisely. a. True b. False
Why do some minerals exist in more than one color?
What will be an ideal response?
Precipitation that falls on Earth's surface ________
A) may take a variety of pathways through surface water or groundwater flow B) is usually already unusable because of acid rain C) mostly runs off into salt marshes or the ocean D) is mostly taken up by plants or other organisms E) almost entirely filters down into the underground aquifers
Humus has a consistency not unlike that of ________
A) putty B) sponges C) gelatin D) rock E) roast beef