Dilution or mixing of air pollutants into the surrounding air is best when:
A) inversions are present.
B) air is unstable.
C) relative humidity is high.
D) air is very cold.
E) winds are calm to light.
B
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Data presented as an average on a pre-existing areal unit (average income by zip code, for example) is presented as a(n) ________.
A. dot distribution map B. graduated circle map C. isopleth map D. choropleth map
Algae, plants, archaea, and photosynthetic bacteria are examples of ________ organisms
A) autotrophic B) consumer C) decomposer D) heterotrophic E) siliceous
The "Great Game" describes conflict over what disputed region?
A) British and Russian over Nepal B) British and Russian over Afghanistan C) India and Pakistan over Kashmir D) Bangladesh E) none of the above
According to the National Vital Statistics Reports, approximately what fraction of Americans who will die or become disabled from cultural hazards will do so because of smoking cigarettes?
A) 4 in 10 B) 3 in 10 C) 2 in 10 D) 1 in 10