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Environmental Science

Environmental Science
_________ ecosystems are maintained artificially by man.

Artificial
Brackish
Marine
Man-made

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Environmental Science
The gas responsible for the greenhouse effect on Venus is:

Ozone (O3)
Water vapor (H2O)
Nitrogen (N2)
Carbon dioxide (CO2)
Oxygen (O2)

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Environmental Science
BOD of a river water is found very high. This means water

contain Algae
is clear
contain many dissolved minerals
is highly polluted

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Environmental Science
Death rate of the population

Vitality
Mortality
Viability
Natality

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Environmental Science
The effects of radioactive pollutants depends upon

All of these
Rate of deposition of the contaminant
Rate of diffusion
Energy releasing capacity

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Environmental Science
Nitrogen fixing blue green algae is

Clostridium
Nostoc
Rhizobium
Nitrosomonas

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MORE MCQ ON Environmental Science

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