Biochemical oxygen demand is the amount of oxygen needed
A. for aerobic breakdown of organic matter in a system.
B. by humans to breathe.
C. to destroy all chemical pollutants in a system.
D. by all organisms in a system, both plants and animals.
Answer: A
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The precautionary principle states that we should make decisions that help to prevent a problem from occurring or becoming worse even if we lack conclusive evidence that these outcomes will occur.
Answer the following statement true (T) or false (F)
The highest temperatures are typically found in the:
A) troposphere. B) thermosphere. C) mesosphere. D) stratosphere.
Two students agree to use brand X, but they are unsure which sizes they should get. Which of the following options will most likely generate the least amount of MSW? To generate the least MSW, they should purchase
A) fifteen 20-ounce spray bottles of cleaner. B) ten 20-ounce spray bottles and a 100-ounce refill jug. C) five 20-ounce spray bottles and two 100-ounce refill jugs. D) two 20-ounce spray bottles and one 260-ounce refill jug.
Basalt is a variety of gabbro.
Answer the following statement true (T) or false (F)