List of top Environmental Sciences Questions on Waste Management asked in CBSE CLASS XII

Name any two green jobs in the following sectors:
(a) Construction
(b) Renewable energy
State any one way to reduce the amount of waste produced at every step of the production in plants and factories.
In a plastic factory, a lot of articles are being made. The manager finds a number of defective pieces which have to be discarded. How can he/she minimize this waste?