The atmospheric layer in which gases do not maintain a uniform composition is the ________
A) ionosphere
B) homosphere
C) troposphere
D) heterosphere
E) stratosphere
Answer: D
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For the following acid-base reaction, identify what is formed in the space marked. H2SO4 + KOH ? KHSO4 + ???
A.
| K2SO4 |
B.
| H3OSO4 |
C.
| KOH2SO4 |
D. H2O
E. none of the above
Which biome has bitterly cold winters, hot dry summers, and receives sparse precipitation?
A. temperate grassland B. cold desert C. boreal forest D. temperate deciduous forest E. tropical rain forest
Studies of past correlations between climate and atmospheric composition allow us now to project atmospheric warming very precisely as a function of CO2 concentration.
Answer the following statement true (T) or false (F)
Dust Bowl conditions in the North American Great Plains of the 1930s represented ________
A) something that will not happen again B) changes which occurred because the climate changed C) an identical situation to Hawaii of the late 1920s D) deforestation E) desertification