Which of the following processes would LOWER the relative humidity of a parcel o
ID: 121107 • Letter: W
Question
Which of the following processes would LOWER the relative humidity of a parcel of air?
a.The air moves downward from a mountain range to the valley below (getting warmer in the process) and no water enters or leaves the system.
b.The air moves upward over a mountain range (cooling) and no water enters or leaves the system.
c.The air is cooled and no water enters or leaves the system.
d. Dust blows into the air but no other changes occur.
2.Clouds develop over mountains because:
The trees, streams and lakes on the mountain release moisture.
Air is forced to rise, thus adiabatic cooling causes condensation.
Storm fronts often stall over mountains and clouds form at these stalled front locations.
d. Clouds don't commonly develop over mountains.
3.If there is excessive pumping of a water well, what could happen?
The excessive pumping will lower the water table.
Salt water will be sucked into coastal wells (wells near the ocean).
The excessive pumping will cause subsidence.
All of these are possible.
a.The air moves downward from a mountain range to the valley below (getting warmer in the process) and no water enters or leaves the system.
b.The air moves upward over a mountain range (cooling) and no water enters or leaves the system.
c.The air is cooled and no water enters or leaves the system.
d. Dust blows into the air but no other changes occur.
2.Clouds develop over mountains because:
aThe trees, streams and lakes on the mountain release moisture.
b.Air is forced to rise, thus adiabatic cooling causes condensation.
c.Storm fronts often stall over mountains and clouds form at these stalled front locations.
d. Clouds don't commonly develop over mountains.
3.If there is excessive pumping of a water well, what could happen?
a.The excessive pumping will lower the water table.
bSalt water will be sucked into coastal wells (wells near the ocean).
cThe excessive pumping will cause subsidence.
dAll of these are possible.
Explanation / Answer
1. The relative humidity of air would be lowered by : a. The air moves downwards from a mountain range to a valley below.
2. Clouds develop over mountains because: b. Air is forced to rise and thus, adiabatic cooling causes condensation.
3. Excessive pumping of water from water wells : d. All of these are possible. Subsidence may occur, Water table might lower, salt water may be sucked into coastal areas.
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