MCQOPTIONS
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				| 1. | 
                                    The mass of water vapour present in __________ is called absolute humidity.? | 
                            
| A. | 1 m3 of water | 
| B. | 1 m3 of dry air | 
| C. | 1 kg of wet air | 
| D. | 1 kg of dry air | 
| Answer» C. 1 kg of wet air | |