Which of the following has been a result of the U.S. Clean Water Act?
A. spurred creation of new technology
B. less CO2 in the atmosphere
C. smaller percentage of streams safe for fishing
D. less need for sewage treatment plants
Answer: A
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The largest ethnic group in Singapore is the Chinese who migrated there because
A. they were willing to take jobs that the indigenous people were not. B. the Japanese used Singapore in WWII as a camp for Chinese prisoners-of-war. C. Singapore sits on the shipping route between China and Europe. D. a Ming Dynasty emperor recognized Singapore's strategic location.
Low-lying islands will be especially impacted by rising sea level.
Answer the following statement true (T) or false (F)
An object at radiative equilibrium temperature is behaving as a ____
A) selective absorber B) blackbody C) light reflector D) greenhouse gas
Globally, aquaculture produces about ________ percent of fish consumed by humans.
A. 24 B. 2 C. 38 D. 12 E. 50