Does a rising moist air mass or a descending moist air mass produce precipitation? Why?
What will be an ideal response?
Answer: Both! Although precipitation actually falls from a descending moist air mass, the production of rain (or snow) requires both descending and rising air or, downdrafts and updrafts. Recall that most water droplets in clouds are so small that they evaporate before reaching the ground. Updrafts allow the water droplets more time in the cloud where they can grow in size. Once the weight of the drop is greater than the force of the updraft, the drop descends growing larger as it falls through the moist air. As the drops descend, they create a downdraft which, once created, yields precipitation.
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Which of these is the correct definition for an ellipse?
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