Rajasthan Board RBSE Class 11 Biology Chapter 42 Global Environmental Change

Rajasthan Board RBSE Class 11 Biology Chapter 42 Global Environmental Change RBSE Class 11 Biology Chapter 42 Multiple Choice Objective Questions Question 1. Percentage of CO2 in the air 1. 0.3% 2. 0.03% 3. 0.003% 4. 3.3% Question 2. The main green house gas is 1. Freon 2. Methane 3. CO2 4. O2 Question 3. … Read more