A labourer is required to make 100 units in a day but actually, he is able to make 80 units in a day. Thus, there is a negative deviation of 20 units.
(i) What steps should be taken to reduce the deviation?
(ii) Which values are missing in the above paragraph?
Mention some applications of petrol in our day to day life.
Can can you give me list of 20 elements of periodic table which we use in our day to day life with their uses