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Q1. |
What type of noise can be abated by providing lining on walls and ceiling with sound absorbing materials ? |
Q2. |
Chlorophyll loss in green plants is called : |
Q3. |
Chlorophyll loss in green plants is called : |
Q4. |
Killing of tissue from air pollutants is called : |
Q5. |
Epinasty in leaves is due to : |
Q6. |
Carbon monoxide has more affinity with haemoglobin than oxygen for about : |