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Environmental Science

Environmental Science
On a clear, calm, night, the ground and air above cool mainly by this process:

Radiation
Evaporation
Conduction
Reflection
Convection

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Environmental Science
Thickness of plastic cover permissible to use

50 Microns
100 Microns
20 Microns
10 Microns

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Environmental Science
During the afternoon the greatest temperature difference between the surface air and the air several meters above occurs on a:

Cloudy, calm afternoon
Cloudy, windy afternoon
Clear, windy afternoon
Clear, calm afternoon

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Environmental Science
High biological oxygen demand indicates:

intense level of microbial pollution
moderate microbial pollution
all of these
absence of microbial pollution

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Environmental Science
Organisms having the potential for interbreeding and producing fertile offspring is called

Order
Class
Species
Genus

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Environmental Science
What is "Black Lung"?

Occupational Hazard to navigators
None of these
Occupational Hazard to pesticide applicators
Occupational Hazard to the miners

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MORE MCQ ON Environmental Science

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