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Arya awasthi from Dps, Raipur

Subject :NSO Class : Class 5

Greenhouse gases cause global warming. Which of the following is a greenhouse gas?

AOxygen
BNitrogen
CCarbon dioxide
DMagnesium oxide

VERY BAD BECAUSE THERE WAS BLOCKge in options

Ans 1:

DESU NAITHIKESWAR REDDY from Ravindra Bharathi Next Gen, Thulasi Nagar Vijayawada

Class : Class 5