ENVIRONMENTAL STUDIES: 300 MULTIPLE CHOICE QUESTIONS WITH ANSWERS (MCQs)

In this video, I have explained 300 multiple choice questions on Environmental Studies. These questions are of immense importance for undergraduate courses specially for B.Tech First year students.
PLEASE NOTE FEW CORRECTIONS:
1) At time 11.47 question number 21, death rate is mortality and birth rate is natality. However I have already corrected it at time 2:44:11.
2) At time 1:12:50 question number 7 the correct answer is carbon monoxide which is a very weak green house gas thus we can say it is not primary contributor to green house.
3) At time 2:48:00, the correct answer is Dendrology (study of trees).
4) At time 1:27, the correct option is (b) Nutrient.
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