Environmental issues

Environmental issues

Its all abt environment related... I thk it wud help us a lot. N I ask evry1 2 contribute 2 save our mother earth by having knowledge abt d pollutants n their causes

published on May 07, 20114 responses 0
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What is the maximum noise permissible during day time in residential areas?

75dB
55dB
2/7

Kyoto protocol is related with ________

3/7

Expand BOD

4/7

Ozone hole is largest over

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Eutrophication results in reduction of_______

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Insecticide which is more hazardous to human health is _____

7/7

Montreal protocol refers to___________