A. Deforestation
B. Rapid industrialisation
C. Increased transportation activity
D. All A., B. and C.
Related Mcqs:
- Green house gases blanket/block the infrared radiation from earth’s surface to the atmosphere leading to its progressive warming up. Which of the following gases does not exhibit green house effect ?
A. CO2
B. H2
C. SO3
D. N2 - Pick out the wrong statement pertaining to ‘green house’ for the plants ?
A. ‘Green house’ (made of glass) allows visible sunlight (i.e., short wavelength solar radiation
like ultra-violet rays) to pass through the glass and heat up the soil thereby warming up plants
inside it
B. The emitted longer wavelength radiation (e.g., infrared) is partly reflected and partly absorbed
by the glass of the green house
C. ‘Green house effect’ in earth’s atmosphere is due to increasing CO2 level in atmosphere, where
CO2 acts like the glass of ‘green house’ thereby warming up the earth’s surface
D. ‘Green house’ is colder than the outside atmosphere - Which of the following is a green house gas other than CO2 ?
A. Methane
B. Nitrous oxide
C. Chlorofluoro carbons (CFC)
D. All A., B. and C. - The effect of increase in carbon dioxide level of the atmosphere and its profound effect on our climate is called the ________________?
A. Catalytic conversion
B. Green house effect
C. Global warming
D. Both B. and C. - Replenishment of dissolved oxygen in water stream polluted with industrial waste occurs by________________?
A. Natural aeration of water stream
B. Photosynthetic action of algae
C. Both A. & B.
D. Neither A. nor B. - Hazardous/polluting chemical industries should have an ‘exclusion zone’ with a green belt and general public access prohibited around it, covering a radius of _____________ metres?
A. 100
B. 1000
C. 400
D. 4000 - The detrimental effect on organism and water quality with temperature rise of aquatic system is the reduction of _____________ of water?
A. Dissolved oxygen content
B. Biological oxygen demand
C. Vapor pressure
D. All A., B. and C. - Which of the following is not a weightless pollutant ?
A. SPM
B. Thermal pollution
C. Radioactive rays
D. Noise pollution - Which is the most efficient dust removal equipment for removal of submicronic dust particles from blast furnace gas ?
A. Packed scrubber
B. Gravity settling chamber
C. Electrostatic precipitator
D. Hydrocyclone - Carbonaceous particles having size less than 1 μm are called___________________?
A. Grit
B. Aggregates
C. Aerosols
D. Smoke
