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Which of the following statements is cor...

Which of the following statements is correct?
I. Montreal Protocol was signed in 1987.
II. Earth Summit 1992 was held at Rio-de-Janeiro.
III. World Environment Day is 5 June.
IV. World Environment Day coincides with commemoration of First United Nations Conference of Human Environment.
V. At DO below 4 mg/L water at normal temperature is heavily polluted.

A

I, II, III, IV and V

B

All except IV

C

All except II and III

D

None of the above

Text Solution

Verified by Experts

The correct Answer is:
B
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