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 : |