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28. Air Outside a water lake is at -40?. It takes 10 hours for first 2 centimetre of ice layer to form over the lake. time taken to form next four centemeter of ice layer formation is ? |
| Answer» 28. Air Outside a water lake is at -40?. It takes 10 hours for first 2 centimetre of ice layer to form over the lake. time taken to form next four centemeter of ice layer formation is ? | |