Weather-climate
Atmosphere-the gaseous envelope surrounding the earth
Ozone-It is used for bleaching, sterilizing water, etc.
Water Vapor-Water in the form of gas
Pollutant-A harmful substant in the air, water, or soil
Photochemical Smog- A brownish haze formened when pollulants react with eatch other in the presence of the sunlight
Arid rain-Smog
Density-The amount of mass of substance in a given volume
Pressure-
Air Pressure -the pressure caused by weight of a cloum or air pushing down on an area
Barometer-An intrument used measures changes in air pressure
Altitude-Elvation above sea level