In Example 3.10, we calculated the amount of natural gas that you would burn to heat 20 gallons of water from room temperature at 70°F to 120°F to take a shower. Determine the additional amount of gas that must be burned if the water heater has an efficiency of (a) 80 percent, (b) 85 percent, and (c) 90 percent.
What will be an ideal response?
A) 
B) 
C) 
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Why is strong heating of the ground by the Sun associated with thunderstorms?
A) reduces the relative humidity B) increases the pressure gradient C) leads to greater instability D) reduces the dew point E) increases the wind speed
The trade wind inversion lies above the ________
Fill in the blank(s) with the appropriate word(s).
During times when precipitation exceeds potential evapotranspiration,
A) there cannot be a deficit.
B) extra water goes into soil-water recharge if the soil is below field capacity.
C) water may go into deep percolation as groundwater.
D) All of these are correct.
As air aloft moves from south to north, air leaves the southern area and "piles up" above the northern area. This redistribution of air ____ the surface air pressure to the south and ____ it to the north
A) raises; reduces B) reduces; raises C) raises; raises D) reduces; reduces