Closest to earth surface by 7-18km above the equator

consist of nitrogen, oxygen, ozone.

19-50 km above the equator

30-50 km above the equator

the concentration of ozone and other gases is low

50-400km above the equator

these processes liberate the equivalent amount of energy, mostly HEAT

400 km above the equator

The outermost layer of our atmosphere

Most active region where all the dramatic events of weather (rain, lightning, hurricanes) occur.

Air temperature increases with altitude due to the exothermic reactions

triggered by UV radiation from the sun.

The temperature decreases again with increasing altitude

Temperature increases with altitude

Ionized particles are responsible for the reflection of radio waves back toward earth.

there is a lot of EMPTY SPACE in between of very spread out hydrogen and helium gases.

one of the products of this reaction sequence is ozone, which serves to prevent harmful UV rays

from reaching earth's surface.

Thinnest layer of the atmosphere(10 km)

There's NO AIR TO BREATHE and its VERY COLD

The total mass of the atmosphere is about

Water is excluded from this table because its concentration in air can vary

drastically from location to location.

The conversation of molecular nitrogen into nitrogen compounds such as ?

The conversation of molecular nitrogen into nitrogen compounds such as nitrates.

is converted to nitrate salts in the soil.

The cycle is complicated because oxygen takes so many DIFFERENT CHEMICAL FORMS.

is removed through RESPIRATION and various industrial procceses.

Is the major mechanism by which molecular OXYGEN IS REGENERATED from CO2 and water.

Spectacular celestial LIGHT SHOWS as a result of ejection of myriad ELECTRONS and PROTONS.

Return to the ground state with the emission of light.

Atom emits photons at wavelenghts of 558nm