Which of the following is found in human faces, animal waste, oil, urea, pesticides, herbicides, fruits and vegetable waste, etc?
Question 8
Which of the following is a part of inorganic impurities of the sewage? (a) Pesticides (b) Urea (c) Phosphates (d) Vegetable waste
Question 15
Animal waste, oil and urea are some of the organic impurities present in sewage. Name two more organic impurities present in sewage.
Identify biodegradable waste from the following :
peal of vegetable less and fruits, metalic cans, broken plastic toys, broken glass cover grass, paper, ball point pen refill.