你可能感兴趣的试题
contains a layer of ozone gases. about 42 degrees colder than on the ground. 21% oxygen by weight. less than 1% of xenon by volume about 75 degrees colder than in Interlaken is warmed by the earth’s heat.
Fluctuations in Weather Patterns. Magnetism and the Sun Spots. The Size and Number about the Earth' s. Livingston' s New Theory about the Earth' s Climate.
He thinks he has discovered a new possibility in the link between sun spots and the weather on the Earth. He has great doubts about the theory that the sun' s frequent changes have an influenced on the Earth' s climate. He has been recently informed by other scientists of the possibility that more sun spots will appear. He does not think the causes of the sun spots will be fully revealed by scientists in the near future.
a decline in agriculture. a drop of the sea level. the death of all animals. a delay in the greenhouse effect.
attention concern tradition business
Fluctuations in Weather Patterns. Magnetism and the Sun Spots. The Size and Number about the Earth’s. Livingston’s New Theory about the Earth’s Climat
effect result account cause
the earth's earth's the earth earth
湘公网安备 43130202000226号