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Consider the following statements about mountain waves:
| 1. |
Mountain waves always develop in a series on the upwind (windward) side of mountain ridges. |
| 2. |
In a mountain wave, the air dips sharply downward immediately to the lee side of a ridge, before rising and falling in a wave motion for a considerable distance downstream. |
| 3. |
If the air is humid and the wave is of large amplitude, lenticular (lens-shaped) clouds mark the wave's crest. |
| 4. |
In a typical wave, the greatest amplitude is seldom more than 1,000 feet above the ridge crest elevation. |
From the statements above, select those which are true.
| * | A) 2 and 3. |
| | B) 1, 3, and 4. |
| | C) 1, 2, and 3. |
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