The Atmosphere and Environment

Which among the following is NOT a particulate pollutant?

• Dust

• CO

• Smog

• Smoke

How is acid rain formed?

• Carbon dioxide and oxygen mix with water in the air.

• Sulfur oxide and nitrogen oxide dissolves in water in the air.

• Carbon monoxide and carbon dioxide mix with water in the ocean.

• Sulfur dioxide and carbon monoxide mix with lake water.

Which of this is a MAJOR cause of acid rain?

• dumping sewage in river systems

• using uranium to generate electricity

• burning fossil fuels for energy

• spraying pesticides on crop

Acid rain has a pH of

• 7

• more than 8

• less than 5.6

• 6.5

Which of these contributes to acid rain?

• CaO

• SO₂

• NaOH

• HCl

Pollution

• found in air, water and land.

• affects people, animals and plants.

• is harmful materials put into environment.

• all of the above.

Which gas contributes largely to the air composition?

• carbon dioxide

• argon

• nitrogen

• oxygen

Which is a source of carbon monoxide?

• volcanic eruptions

• lightning

• burning of fossil fuels

• decay of animals and plants

Which is an effect of unburnt hydrocarbons?

• acid rain

• combine with haemoglobin and reduce oxygen to the body

• cancer

• irritate eyes

How are the different components of air separated?

• filtration

• simple distillation

• chromatography

• fractional distillation