Why is the saturated adiabatic lapse rate less than the unsaturated adiabatic lapse rate?
A. Absorption of latent heat causes a parcel of air to contract.
B. The steepness of the lapse rate curves are identical.
C. Absorption of latent heat warms the local environment.
D. Release of latent heat warms the local environment.
Answer: D
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Consider a midnight scenario in which a shallow layer of air near the ground has an air temperature of 7ºC and a dew point temperature of 2ºC. Which of the following statements describes the conditions at 6:00 a.m. if the air continues to cool at a rate of 0.8ºC per hour until the dew point is reached, and at a rate of 0.4ºC per hour thereafter?
A. The temperature will be 0ºC and only frost will be present. B. The temperature will be 1ºC and no condensation will be present. C. The temperature will be 0ºC with frost and frozen dew present. D. The temperature will be 1ºC and only dew will be present.
In the flow of matter in ecosystems, the greatest flow of nutrients is between ________
A) detritus and producers B) producers and top consumers C) middle consumers and producers D) decomposers and top consumers E) the sun and producers
Taken together, labor, capital, technology, entrepreneurship, and land containing raw materials are called
A) factors of consumption. B) comparative advantage. C) terms of trade. D) demand conditions. E) factors of production.
The Mesozoic Era began approximately ________ years ago.
A. 531 million B. 252 million C. 2.6 million D. 65 million E. 4.55 billion