Environmental Chemistry: Atmosphere

it is colorless

it is odourless

it is an air pollutant

it causes breathing difficulties

12 km

50 km

80 km

70 km

17 °C

−55 °C

−5 °C

1800 °C

Powerstations and industries using fossil fuels

exhaust fumes of motor vehicles

incomplete burning of wood

none of above

it is poisonous

it is insoluble in water

it is not an air pollutant

it cannot cause death

ozone

oxidation

oxidizing agent

reducing agent

nitrogen

oxygen

carbon dioxide

helium

20 °C higher

10 °C to 15 °C higher

5 °C higher

25 °C higher

layer

top

changing

turning

it is colorless

it is odourless

it is toxic

it is not harmful