In 1974, Dr. Rowland and Dr. Molina made what observation vis-à-vis ozone (O3 )?
A) Anthropogenic O3 releases were a major culprit in global warming.
B) Automobile exhaust and sunlight were producing photochemical smog.
C) Photochemical interactions occur between chlorofluorocarbons and O3.
D) CFC use at current levels had little effect on O3.
E) Ground-level O3 irritates human eyes and respiratory systems.
C
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Which city in Kazakhstan is an example of a "forward capital"?
A) Kabul B) Almaty C) Tashkent D) Samarkand E) Astana
Sweden represents a nation in which
A) women tend to marry early and have large families. B) women tend to marry late, enter the work force, and have access to significant social and medical services. C) women are poorly educated and usually cannot find employment. D) the population is characterized mostly by large numbers of people under the age of 25 and a much smaller elderly age group.
Pilots prefer to fly in the core of a jet stream
a. True b. False
Judge the following sentence according to the criteria given below: Clown fish are not stung by sea anemone BECAUSE clown fish release a chemical into seawater that makes the stinging tentacles retract
A) The assertion and the reason are both correct, and the reason is valid. B) The assertion and the reason are both correct, but the reason is invalid. C) The assertion is correct, but the reason is incorrect. D) The assertion is incorrect, but the reason is correct. E) Both the assertion and the reason are incorrect.