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Environmental Science

Environmental Science
Green House effect is caused by

Increase in O2
Decrease in CO2
Decrease in O2
Increase in CO2

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Environmental Science
Which one of the following is the correct percentage of the two green house gases that contribute to the total global warming?

CO2-40%,CFCs-30%
Methane-20%, N2O-18%
N2O-6%, CO2 -86%
CFCs -14%, Methane-20%

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Environmental Science
Endemic species are

species localised in a specific region
cosmopolitan in distribution
critically endangered species
rare species

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Environmental Science
The pyramid of numbers in a single tree is

Spindle shaped
Upright
None of these
Inverted

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Environmental Science
If all the water vapour in the atmosphere were to condense and fall to the ground, the globe would be covered with about ______ of water.

1 inch
1 foot
1 millimeter
1 meter

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Environmental Science
MAB stands for

Man and biotic community
Man, antibiotics and bacteria
Man and biosphere
Mayer, Anderson and Bisby

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