Oxygen

Carbon Dioxide

Argon

Nitrogen

60%

70%

80%

90%

used in soil to grow plants, trees, and flowers.

needed for human and animal respiration

traps heat onto Earth to make it livable

10%

20%

30%

40%

used in soil to grow plants, trees, and flowers.

needed for human and animal respiration

traps heat onto Earth to make it livable

1%

10%

0.5%

5%

used in soil to grow plants, trees, and flowers.

needed for human and animal respiration

traps heat onto Earth to make it livable

it combines with the oxygen in the air to make livable, breathable, air.

it protects us from harmful UV sun rays.

it is needed for plant life

it combines with the oxygen in the air to make livable, breathable, air.

it protects us from harmful UV sun rays.

it is needed for plant life

The warming of a planet due to trapped heat energy.

The cooling of Earth due to air pollution.

The heating of a solid, such as a rock.

little to no changes

more homes for animals

less plants to absorb carbon dioxide, a greenhouse gas

Carbon dioxide

Methane

Water vapor

All answers are correct

methane

nitrous oxide

carbon dioxide

fluorinated gases

forest fires

volcanic activity

burning coal

coal dust in mines