__________ are found beneath fair-weather cumulus (cumulus humilis) clouds, whereas
__________ are found between the clouds.
a. downdrafts; updrafts
b. updrafts; downdrafts
c. downdrafts; only horizontal motions
d. updrafts; only horizontal motions
b
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Although we don't know for sure, changes in the strength and orientation of earth's magnetic field are most likely due to
A) fluctuations in outer-core convection. B) variations in sea-floor spreading rates. C) the total number of mantle hot spots. D) changes in the velocity of subducting plates.
Historical evidence suggests that substantive climate change
A. nearly always has occurred over several million years. B. nearly always occurs only during pronounced movement of tectonic plates. C. can happen in as short a period as a few decades. D. is very new, limited in appearance to the last few centuries.
What occurs when members of two or more species interact to gain access to the same limited resources?
A. interspecific competition B. predation C. parasitism D. mutualism E. commensalism
This religion is a polytheistic faith
A) Judaism B) Islam C) Hinduism D) Cao Dai E) Sikhism