The atmosphere ______ of certain gases mixed together in definite proportions.A.consistsB.
The atmosphere ______ of certain gases mixed together in definite proportions.
A.consists
B.comprises
C.composes
D.constitutes
The atmosphere ______ of certain gases mixed together in definite proportions.
A.consists
B.comprises
C.composes
D.constitutes
It can be inferred from the passage that______.
A.the atmosphere has a lot of water when it circulates
B.the water in the atmosphere is purer than that in the world's oceans
C.the amount of water in the atmosphere is greater than that in the oceans of the world
D.the small 'amount of water in the atmosphere plays an important part in the rainfall on the earth
All of the following are parts of the Sun's atmosphere EXCEPT the ______.
A.corona
B.chromospheres
C.photosphere
D.core
The best title for this passage would be _____.
A.The Atmosphere and Our Environment
B.Research on Radiation
C.Effects of Space Radiation
D.Importance of Protection Against Radiation
These gases pollute the atmosphere of towns and cities.
A.air
B.water
C.earth
D.feeling
The atmosphere ______ certain gases mixed together in definite proportion.
A.consists of
B.consists in
C.insists on
D.persists in
A.absorbed by the clouds in the lower atmosphere
B.reflected by the gases in the upper atmosphere
C.lost in the upper and lower atmosphere
D.used to evaporate water from the oceans and lakes
The best definition of "biosphere". as it is used in the text is.
A.the protective envelope formed by the atmosphere around the living earth
B.that part of the earth and its atmosphere in which life can exist
C.the living things on earth whose existence is made possible by circulation of the atmosphere
D.the circulation of the atmosphere's contribution to life on earth
All the following are parts of the sun's atmosphere except ____________.
A.the corona
B.the chromosphere
C.the photosphere
D.the core
The atmosphere of the story in the very beginning is______.
A.joyous
B.gloomy
C.light
D.auspicious
A.statistics
B.atmosphere
C.concentration
D.supplement