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Environmental Science

Environmental Science
Concept of ecological pyramids was proposed by

Charles Elton
Tansley
Clements
Odum

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Environmental Science
An ecosystem must have continuous external source of

food
All of these
energy
minerals

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Environmental Science
Wild life protection act was formulated during the period of ______

Rajiv Gandhi
Lal Bahadur Shasthri
Mrs. Indira Gandhi
Morarji Desai

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Environmental Science
_______ species is known as Azadirachta Indica.

Neem
Banana
Mango
Jackfruit

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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?

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

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Environmental Science
BOD stands for

None of these
Biotic Oxygen Demand
Biological Oxygen Decrease
Biological Oxygen Demand

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