The layer of the atmosphere that plays a major role in earth's weather and long-term climate is the
A. thermosphere.
B. mesosphere.
C. stratosphere.
D. troposphere.
E. tropopause.
Answer: D
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Which nation is taking the initiative to reinvent the ancient Silk Road as a modern transportation route for contemporary trade?
A) China B) Russia C) Mongolia D) Uzbekistan E) Kazakhstan
An example of a market-based incentive for environmental protection would be
A. Fees charged to inventors of new control technologies B. Rigid laws outlawing pollution production C. Setting prices for pollution according to consumer demand D. Fees placed on certain types or volumes of a pollutant E. All of these are examples of market-based incentives for environmental protection
What grade of metamorphism occurs at a depth of 6 km and a temperature of 100 degrees C?
A) lithification of sedimentary rocks B) medium-grade metamorphism C) not found on Earth D) low-grade metamorphism
Which is an example of the hidden cost of gasoline?
A. Military protection of oil producing countries in the Middle East. B. Building large storage tank forms to hold surplus oil. C. Building modern tankers to ship oil that will not leak if ruptured. D. Finding new source of oil as older fields become depleted.