Geography
What is A% and B% as depicted in the diagram showing the composition of the atmosphere
- A: 72 B: 27
- A: 77 B: 22
- A: 78 B: 21
- A: 79 B: 20
Related Questions
The blanket of air surrounding the earth is known as the:
- Ozone layer
- Nitrogen layer
- Lithosphere
- Atmosphere
About 90 percent of air mass lies within about …………… from the earth's surface.
- 20 km
- 22 km
- 25 km
- 30 km
Name the densest layer of the atmosphere.
- Exosphere
- Troposphere
- Stratosphere
- Mesosphere
Mountain climbers set up camps at the base as well as at regular intervals along their climb. Why?
- To acclimatize their bodies to lower concentration of air.
- To acclimatize their bodies to lower temperature.
- To acclimatize their bodies to pressure.
- All of the above.