The ozone layer is found in which layer of the atmosphere? (Points: 3)
troposphere
stratosphere
mesosphere
thermosphere
. Which gas is found in the greatest abundance in the modern atmosphere? (Points: 3)
oxygen
helium
hydrogen
nitrogen
3. Earth’s early atmosphere was shaped initially by which of the following? (Points: 3)
outgassing of volcanoes
photosynthesis of land plants
respiration of mammals
moving clouds
4. The atmosphere is heated most by which of the following? (Points: 3)
radiation
conduction
convection
wind
5. Converging trade winds produce a calm region called _____________. (Points: 3)
horse latitudes
doldrums
trade winds
westerlies
2007-12-15
11:16:00
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3 answers
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asked by
Jackie
2
in
Science & Mathematics
➔ Earth Sciences & Geology