Halogenated hydrocarbons are a problematic group of synthetic organic compounds because they are
A) toxic, non-biodegradable and readily absorbed into the body.
B) radioactive.
C) heavy metal insecticides that kill many non-target species.
D) biodegradable but highly toxic.
A
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What kind of economic system does the United States have?
A. It converts high quality matter and energy into waste and pollution. B. It strives to conserve resources at the expense of economic growth. C. One in which the cost of goods and services reflects their environmental impacts. D. One in which the main goal is the long term sustainability of resources.
Watering and fertilizing plants in your home provides them with components of the
A) atmosphere and lithosphere. B) hydrosphere and biosphere. C) lithosphere and hydrosphere. D) biosphere and atmosphere.
The most essential compound needed to sustain life as we know it is ________
A) ozone B) carbon dioxide C) carbohydrates D) oxygen E) water
Aristotle's view of natural laws is best understood by
A. reasoning. B. patterns. C. mathematics. D. experiment.