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Environmental Science

Environmental Science
The cutting down of trees and setting them on fire and raising crops on the resulting ash is called:

Taungya system
Shift cultivation
Pyrolysis
Jhum

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Environmental Science
"Smog" is a mixture of

Sulphur Dioxide and Fog
Snow and Dust
Snow and Fog
Smoke and Fog

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Environmental Science
The main energy source for the environment is ________

Solar energy
Chemical energy
Bioelectric energy
Electrical energy

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Environmental Science
The most abundant greenhouse gas in the earth's atmosphere:

Methane (CH4)
Water vapour (H2O)
Nitrous oxide (N2O)
Chlorofluorocarbons (CFCs)
Carbon dioxide (CO2)

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Environmental Science
In which year was "Project Tiger" launched?

1964
1998
1973
1970

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Environmental Science
The horizontal extent of the ozone hole can sometimes exceed the size of the Antarctic continent.

1

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