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Answer Posted / vikash
because trees don't make there food in night so they take
oxygen at night and release carbon di oxide which is
dangerious for humen beings
| Is This Answer Correct ? | 13 Yes | 10 No |
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sir iam from electrical and electronics branch ,can i appear for the hpcl offline requirtment? if yes please mail me on vikram_raju25@yahoo.co.in
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