The accumulation of an early atmosphere by the release of gases from Earth’s interior during volcanism is known as
____.
a. photosynthesis
b. outgassing
c. abiogenesis
d. continental accretion
e. stromatolite
b
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As the Baby Boom ages and the elderly cohorts get larger, the dependency ratio in the United States will
A) drop. B) rise. C) disappear. D) stay the same. E) fluctuate more and more.
Sediment carried by water and wind in deserts accumulates in the following landforms:
a. Talus aprons b. Playas and Salt Lakes c. Dunes d. All of the above e. Both a and c
Over the oceans, evaporation exceeds precipitation, yet sea level does not drop. Explain why
What will be an ideal response?
What is the effect of Mexico City's warm, sunny climate on its pollution problems?
A. There is faster dispersal of pollutants. B. There is less risk for the spread of infections. C. There are lower levels of air pollutants. D. There is a decreased risk for parasites and vermin. E. There is an increase in smog levels.