What does a food web illustrate?
a. trophic relationships
b. primary production
c. a net filled with food
d. heterotroph consumption
e. autotroph consumption
a
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As of 2015, it is clear that public opinion in the United States
A) strongly endorses the anti-environmental attitudes of many commercial special interest groups. B) trusts the EPA much more than commercial special interests to oversee the national environment. C) wants Congress to repeal the Endangered Species Act and disband the EPA. D) views global climate change as a political hoax.
Why are inlets through barrier bars or barrier islands not closed by longshore drift of sand?
a. Such inlets are always the outlets for onshore rivers to reach the sea, so they flush the sand out. b. Rapid flow of water back and forth through the inlet as tides rise and fall keeps it clear. c. Longshore sand drifted into such inlets drops into deeper water, so it drifts out to sea. d. Sand drifted into such inlets encounters brackish water from the inlet and dissolves. e. Sand drifted into such inlets is carried into the lagoon by incoming waves.
Would you expect the heaviest snowfall to occur on an unusually cold night or a night when the temperature was just a little below freezing?
What will be an ideal response?
Which of the following is an assumption of neoclassical economics?
A) All citizens deserve just and equal economic and sociopolitical treatment. B) Long-term effects and planning are important. C) External costs and benefits are valuable. D) Economic growth is a means toward greater human well-being. E) Resources are finite and should be conserved for the greater good of society.