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, 2011260 responses 0 4.0★ / 5

What is the maximum noise permissible during day time in residential areas?

75dB
55dB

Kyoto protocol is related with ________

Expand BOD

Ozone hole is largest over

Eutrophication results in reduction of_______

Insecticide which is more hazardous to human health is _____

Montreal protocol refers to___________