The earth’s first atmosphere was composed primarily of ______________.
A. Carbon dioxide and water vapor
B. Hydrogen and helium
C. Oxygen and water vapor
D. Argon and nitrogen
Category: General Knowledge Mcqs
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Plants which grow in shade are called ____________.
A. Sciophytes
B. Heliophytes
C. Oxylophytes
D. Epiphytes
Gas released during photosynthesis is ____________.
A. Methane
B. Nitrogen
C. Oxygen
D. Carbon dioxide
In a volume of air near the earth’s surface, _____________ occupies 78 percent and ____________ nearly 21 percent.
A. Nitrogen, oxygen
B. Hydrogen, oxygen
C. Oxygen, hydrogen
D. Nitrogen, water vapor
E. Hydrogen, helium
Plants which grow in light are called _____________.
A. Sciophytes
B. Heliophytes
C. Oxylophytes
D. Epiphytes
Which gas is likely to be reduced in the atmosphere by deforestation?
A. Carbon dioxide
B. Nitrogen
C. Oxygen
D. Sulphur dioxide
Which of the following is not a green house gas?
A. Carbon dioxide
B. Methane
C. Ozone
D. SF6
Continue reading “Which of the following is not a green house gas?”
Which of the following gases are mainly responsible for the atmospheric greenhouse effect in the earth’s atmosphere?
A. Oxygen and nitrogen
B. Nitrogen and carbon dioxide
C. Ozone and oxygen
D. Water vapor and carbon dioxide
The combination of nitrogen oxides and hydrocarbons in the presence of the sunlight causes ____________.
A. Global warming
B. Smog
C. Ozone hole in the atmosphere
D. Acid rain
The Residential and Commercial wastes mainly consist of ____________.
A. Food wastes
B. Card board
C. Packaging materials
D. None of the above
