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Question
Going from most significant to least significant, the atmospheric gases contributing to the greenhouse effect includeA) carbon dioxide and water vapor.
B) carbon dioxide, water vapor, methane, nitrous oxides, and CFCs.
C) water vapor and carbon dioxide.
D) water vapor, CFCs, carbon dioxide, and ozone.
Answer
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Related questions
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Heat energy is measured in units of
A) degrees.
B) joules.
C) calories.
D) both joules and calories.
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When the temperature of a fixed volume of air initially at 0 C is lowered by 1 degree, its pressure
A) decreases by 1/273.
B) decreases by 100/273.
C) increases by 1/273.
D) increases by 100/273.
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Which of these is the smallest?
A) 1 Celsius degree
B) 1 kelvin
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Distinguish between the concepts of thermal energy, temperature, and heat.
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B) layer of water slightly below the surface.
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Water at 4C will expand when it is slightly
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B) warmed.
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If water at 0C slightly increases in temperature, the water
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If water at 20C slightly increases in temperature, the water
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A kg of 40C water and a kg of 20C water, after being mixed, have a temperature of 30C. However, the final temperature of a 1-kg iron block at 40C placed into 1 kg of water at 20C is
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A) becomes more ordered.
B) becomes less ordered.
C) reaches equilibrium.
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When work is done by a system and heat is subtracted, the temperature of the system
A) increases.
B) decreases.
C) remains unchanged.
Q:
Which law of thermodynamics addresses the direction of heat flow?
A) First law
B) Second law
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D) all of the above
Q:
Which law of thermodynamics states that no system can reach absolute zero?
A) First law
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Q:
At some point between Earth and the Moon, the forces due to gravity on a space traveler would be the same when this point is
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Q:
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A) less the gravitational force between them.
B) more the gravitational force between them.
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B) half as much.
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Newton discovered
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C) neither of these
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C) neither of these
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E) none of the above