Ozone depletion is mostly caused by __________?
A. CO2
B. CCL
C. CFCs
D. CO
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Category: Environmental Science
Environmental science MCQ is the section of General knowledge MCQ Questions for all exam like competitive exam, interview and entrance test, Government exams, State and UPSC Civil Services Examinations, PSC, SSC, cgl, ibps,ias, ras , Bank exams and other various exams
The final stable community in an ecological succession is called the __________?
A. final community
B. ultimate community
C. climax community
D. seral community
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Typically, water vapour occupies about what percentage of the air’s volume near the earth’s surface?
A. About 78 percent
B. About 21 percent
C. Close to 10 percent
D. Less than 4 percent
E. None of these
Ideal conditions for a strong radiation inversion is __________?
A. Clear, calm, dry, winter night
B. Clear, calm, moist, summer night
C. Cloudy, calm, moist, winter night
D. Cloudy, windy, moist, summer night
E. Clear, windy, dry, summer night
Which plants die after flowering?
A. Lotus
B. Bamboo
C. Chrysanthemum
D. Butea
Example of primary pollutant is __________?
A. SO2
B. NO2
C. CO
D. hydrocarbons
Although the polar regions radiate away more heat energy than they receive by insulation in the course of a year, they are prevented from becoming progressively colder each year by the__________?
A. Conduction of heat through the interior of the earth
B. Concentration of earth’s magnetic field lines at the poles
C. Circulation of heat by the atmosphere and oceans
D. The insulating properties of snow
E. Release of latent heat to the atmosphere when polar ice melts
Which one is true?
A. symbiosis when neither population affects each other
B. symbiosis when the interaction is useful to both the populations
C. commensalism when none of the interacting populations affect each other
D. commensalism when the interaction is useful to both the populations
Rising air cools by this process of __________?
A. Expansion
B. Evaporation
C. Compression
D. Condensation
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The __________ holds a planet’s atmosphere close to its surface.
A. Radiation
B. Gravity
C. Cloud cover
D. Moisture
E. Pressure
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