Earth Atmosphere Multiple Choice Questions (MCQ) PDF Download

MCQ : which is not the part of greenhouse gases

1. carbon dioxide
2. methane
3. nitrous oxide
4. oxygen

MCQ 1: Percentage of oxygen in the atmosphere of Earth is

1. 0.2294
2. 0.2594
3. 0.2394
4. 0.2094

MCQ 2: Second most abundant constituent of dry air in terms of volume after nitrogen is

1. nitrogen
2. oxygen
3. carbon dioxide
4. helium

MCQ 3: Most abundant constituent of dry air in terms of volume is

1. carbon dioxide
2. helium
3. nitrogen
4. oxygen

MCQ 4: Percentage of nitrogen in the atmosphere of Earth is

1. 0.9108
2. 0.8508
3. 0.78084
4. 0.65084