THE PROCESSES THAT CAUSE THE COMPOSITION OF THE ATMOSPHERE TO FLUCTUATE:
1) Photosynthesis, combustion & respiration.
2) Evapotranspiration (transpiration from plants, evaporation from non-living).
Nitrogen fixation by nitrogen-fixing bacteria in the soil or in the roots of legume plants, removes Nitrogen from the air.
PROPERTIES OF GASES
1) Nitrogen gas
- Used in the haber process to make…