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air pollution

Horizontales
A colorless pungent toxic gas formed by burning sulfur in air.
A reversal of the normal behavior of temperature in the troposphere.
A climatic tendency.
Introduction into the air of a substance which has harmful or poisonous effects.
Consists of hundreds of substances, with ground level ozone among the worst hazard.
Verticales
Its formation depends upon several factors, including daytime.
Fog or haze combined with smoke and other atmospheric pollutants.
An area where farming is practiced.
A colorless, odorless, tasteless gas produced by burning gasoline or wood, etc.
A compound of nitrogen and oxygen produced during combustion.