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GRY 135 - Investigations 7A Questions with 100% correct answers | verified | latest update 2024
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GRY 135 - Investigations 7A Questions with 100% correct answers | verified | latest update 2024
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GRY 135 - Investigations 7A1. Cold, dry air is ______ relatively warm, humid air. Consequently, warmer (lighter) air is forced to rise above the sloping front overlying colder (denser) air. - ANS-Denser Than
2. Ascending unsaturated (clear) air ______, cooling at about 10°C per 1000 m of ascent (5.5°F per 1000 ft.). - ANS-Expands
3. The warmer air rising above the front expands and cools as it ascends, and its relative humidity ______. If saturated, clouds develop and rain or snow may fall from those clouds. - ANS-Increases
4. The relative humidity of saturated (cloudy) air is ______. - ANS-100%
5. Clouds (and precipitation) can develop in the ascending branch of a convection current, along a front, and up the windward slopes of a mountain range. The ascending branch of a convective current may produce an upwardly billowing cloud known as a ______ cloud. For a review of cloud types and their development, see Chapter 7 of the Weather Studies textbook. - ANS-Cumulus
6. Prevailing winds blow from west to east across most of North America. Winds blowing onshore from the Pacific Ocean are forced up the windward slopes of the Cascade Mountain Range in the Pacific Northwest. Hence, the heaviest precipitation falls on the ______ slopes of the Cascades. - ANS-Western
7. Comparing Figure 7A-1 and Figure 7A-2, the cold front with associated precipitation in Oklahoma in Figure 7A-1 advanced with the low-pressure center generally toward the ______. This movement is evidenced by an increase in sea-level pressure for Oklahoma City from Figure 7A-1 to Figure 7A-2 as well as the changing wind direction due to the passing front. - ANS-East
8. Given the advancement described in #7, the advancing front(s) ______ have provided a lifting mechanism for the air, leading to clouds and precipitation. - ANS-Would
9. There is ______ evidence in Figure 7A-2 of radar-indicated rainfall ahead of the cold front in Arkansas, compared to Figure 7A-1 for the same location. Your answers to #7 and 8 support this statement. - ANS-More
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