What is the angle of repose for a sediment such as sand?
A) 7°
B) 12°
C) 33°
D) 59°
Answer: C
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How does excess CO2 in the atmosphere cause more extreme flooding?
A. It warms the atmosphere and causes increased evaporation. B. It cools the atmosphere and causes decreased evaporation. C. It combines with rain droplets and makes them larger. D. It increases the acidity of the rain and while the amount of rain is the same, the acidity causes more erosion.
If the dry-bulb temperature is 90°F and the wet-bulb temperature is 79°F, What is the relative humidity?
Using the psychrometer tables and the table of saturation mixing ratios, answer the question about determining relative humidity with a sling psychrometer. What will be an ideal response? __________ %
Which of the following controls the rate of groundwater flow?
A) The slope of the water table B) The permeability of the rocks C) How fractured the rocks are D) All of these are correct.
Which of the following greenhouse gases is the most efficient at trapping heat (i.e., has the highest global warming potential-GWP)?
A. nitrous oxide (N2O) B. carbon dioxide (CO2) C. chlorofluorocarbons (CFC's) D. ozone (O3) E. methane (CH4)