Which of the following was NOT discussed in the opening two-page spread of the Energy and Matter chapter?
A. clouds
B. tropical regions
C. seasons
D. sunlight
E. All of these choices were discussed.
Answer: E
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Despite decades of ________, the U.S. remains the world's largest ________
A) regulation, polluter B) deindustrialization, manufacturer C) conservative policies, liberal democracy D) service development, agricultural exporter E) vigorous energy conservation, consumer of fossil fuels
Trophic structure refers to the pattern of food consumption in an ecosystem
Indicate whether the statement is true or false
____________________ are relatively straight features cutting across a mosaic
Fill in the blank(s) with correct word
The 2012 Rio+20 conference on sustainable development generally agreed to
A) eliminate the use of all grains for biofuel production. B) stabilize current levels hunger and malnutrition in the world. C) help the countries most dependent on imported grains produce more food. D) build dams and irrigation systems to help increase crop production in the developing world.