Multiple Choice Question Answer XX — task. Science CBSE, Class 9.

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1. The two great industrial tragedies namely, MIC and Chernobyl tragedies respectively occurred where and at which time?

Bhopal 1984, Ukraine 1990
Bhopal 1984, Ukraine 1988
Bhopal 1986, Russia 1988
Bhopal 1984, Ukraine 1986

2.

$NO_2$ vapors are harmful to the body because

They produce allergy
They produce respiratory problems
They create blood clots
None of these

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