On a cold winter morning, the air near the surface is full of smoke particles. If fog formed in this air, how would it likely compare to fog that forms in cleaner air?
A. It would be thinner.
B. It would be thicker.
C. It would be a different colour.
D. It would be practically the same.
Answer: B
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If you brought air at 32°C with 90% relative humidity into your house and cooled it down to 21°C, how many grams of water would condense per kilogram of air?
This question show how the relative humidity of warm, moist outside air changes when it is brought inside and cooled. People who live in hot, humid climates have to dehumidify their air to feel comfortable. As air cools, its relative humidity increases, making it feel muggy. What will be an ideal response?
What might be the contemporary basis for conflicting claims to the Arctic?
A) potential for energy resources B) old Cold War grudges C) colonial expansion D) shifting sea ice formations E) the proximity of South American and African countries
Which compound, produced by the smelting of pyrite (FeS2), affects the natural sulfur cycle?
A. SO2 (gas) B. H2S (gas) C. SO4- (ion in salt) D. Ozone (gas)
Which of the following has the highest albedo?
A) Forests B) Dry, light sandy soils C) Fresh snow D) Asphalt