(i) Increased use of disposable items like paper plates, plastic items, polythene, etc. and use of aluminium foil and plastic wraps for packaging at small scale and large scale has resulted in greater amounts of waste.
To reduce non-biodegradable waste, polythene bags and plastic containers should be reused.
(ii) The hawk will have greatest amount of chemicals because it is at the highest level of food chain. The phenomenon is called biomagnification.
