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Environmental Science

Environmental Science
The pyramid of energy in terrestrial ecosystem is

Irregular
Inverted
Spindle shaped
Upright

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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?

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

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Environmental Science
The pollution which does not persistent harm to life supporting system is

Noise pollution
Radiation pollution
Organochlorine pollution
All of these

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Environmental Science
In ecological succession from pioneer to climax community, the biomass shall

increase continuously
decrease
increase and then decrease
no relation

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Environmental Science
If the air temperature remains constant, evaporating water into the air will ____ the dew point and ____ the relative humidity.

Increase, increase
Increase, decrease
Decrease, decrease
Decrease, increase

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Environmental Science
Good urban planning is essential for __________ land use.

Rational
Planned
Unplanned
Irrational

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