Question

The altitude of lowland increases by ?

Answer 1

the altitude of lowland is increases due to little oxygen, strong winds, frigid temperature.

Answer 2

Answer:

Air pollution is a mixture of solid particles and gases in the air. Car emissions, chemicals from factories, dust, pollen and mold spores may be suspended as particles. Ozone, a gas, is a major part of air pollution in cities. When ozone forms air pollution, it's also called smog. Some air pollutants are poisonous.