What is the natural process of nutrient enrichment of a water body?
A. thermal inversion
B. eutrophication
C. point source pollution
D. channelization
E. oligotrophication
Answer: B
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A clastic sedimentary rock composed of sand (85%) and silt (15%) would be called a
A) silty sandstone. B) siltstone. C) sandstone. D) sandy siltstone.
The largest animals in the world are the ________.
A. finback whales B. sperm whales C. humpback whales D. blue whales E. sei whales
What factors cause albedo to vary from time to time and from place to place?
What will be an ideal response?
Complexity in an ecological community has to do with the number of
A. Primary producers available B. Genetic variations within a species C. Species in the population D. Primary producers relative to the number of consumers E. Species at each trophic level