The atmosphere consists of ___________.
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1 .At the top of Jungfrau, which towers 12000 feet above the town of Interlaken in Switzerland, the temperature is usually _________.
A contains a layer of ozone gases B about 42 degrees colder than on the ground C 21% oxygen by weight D less than 1% of xenon by volume E about 75 degrees colder than in Interlaken F is warmed by the earth’s heat
2 .Life as we know exists on the earth because the atmosphere ___________.
A contains a layer of ozone gases B about 42 degrees colder than on the ground C 21% oxygen by weight D less than 1% of xenon by volume E about 75 degrees colder than in Interlaken F is warmed by the earth’s heat
4 .The troposphere is the warmest part of the atmosphere because it __________.
A contains a layer of ozone gases B about 42 degrees colder than on the ground C 21% oxygen by weight D less than 1% of xenon by volume E about 75 degrees colder than in Interlaken F is warmed by the earth’s heat
5 .The subject of this passage is the ____________.
A formation of volcanoes B results of volcanic action C work of geologists D interior of the earth
