The Kyoto Protocol was a commitment by industrial nations
A. to reduce greenhouse-gas emissions such as carbon dioxide and methane to about 5 percent below 1990 levels by 2012.
B. to reduce their CO2 emissions while helping undeveloped countries increase their CO2 emissions.
C. to boycott the United States because of their high CO2 emissions, which currently are more than 20 percent of the global total.
D. to increase CO2 sinks instead of reducing CO2 emissions.
Answer: A
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Resources that are obtainable from Earth but are present in fixed amounts are called
A. renewable resources. B. non-renewable resources. C. intangible resources. D. proven reserves.
Which of the following solutions is the most concentrated?
A) one liter of water with 1 gram of sugar B) one liter of water with 2 grams of sugar C) one liter of water with 5 grams of sugar D) one liter of water with 10 grams of sugar E) They all have the same volume.
An upper-level pool of cold air that has broken away from the main flow is called:a
a cut-off low. b. a shortwave. c. a wave cyclone. d. a lee-side low
Fish most commonly live ________
A) near islands and continents B) in the deepest parts of the ocean C) far from islands and continents D) in the upper part of the oceans E) in the thermoclines