The most dangerous airborne particulates are those that are
A. Anthropogenic
B. Small enough to be drawn into the lungs
C. Produced in industrial settings
D. Large enough to damage the skin and eyes
E. Liquid
Answer: B
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Which statement about acid deposition is false?
A. Forty-five U.S. states have issued warnings not to eat fish. B. Low pH increases plant nutrients in forest soils. C. Several thousand lakes in Norway and Sweden contain few fish. D. Crops are harmed by low pH. E. Mountaintop forests are the hardest hit regions.
Minerals are added to the B horizon primarily from the
A) E and O horizons. B) C and E horizons. C) A and O horizons. D) A and E horizons.
The figure above shows an upper-level 500 mb weather map drawn over North America. What can you expect about the temperature of the air column the star is located in?
a. I have not enough information to answer this question. b. The temperature is relatively low. c. The temperature is the same anywhere on this map. d. The temperature is relatively high.
The distance between corresponding points on any two successive waves i known as the
A) electromagnetic spectrum. B) Kelvin. C) Pascal. D) wavelength. E) frequency.