(i) Chlorifluorocarbons (CFC) are one of the major cause for ozone depletion.
(ii) Moonlight is dimlight during which cone cells of our eye do not function well therefore colour is not perceieved. It is only red cells that function in moonlight.
(iii) It is a herbaceous plant and loses too much of water by exessive transpiration. The rate of transpiration is more than the rate of absorption. So they with weak stem droops and wilts.
(iv) Carbon monoxide has great affinity with haemoglobin of our blood. It mixes with haemoglobin almost 300 times more than that with oxygen. It cuts off the supply of oxygen due to which it is fatal.
(v) Alcohol affects the cerebellum part of the brain which is responsible for muscular co-ordination. So after consuming alcohol due to lack of muscular balance and coordination, the person walks clumisly.
