Chemistry of the atmosphere

This is the layers of gas around earth.

• Atmosphere

• Thermosphere

• Methane

• Ozone

Earth’s early atmosphere theory that it was made of the following gases.

• carbon dioxide, nitrogen and water vapour

• oxygen, nitrogen, and water vapour

• carbon dioxide, nitrogen, argon

Earth’s early atmosphere was similar to

• Mars and Venus

• Mars and the Moon

• Mercury and Venus

Photosynthesis ....

• removes carbon dioxide and makes oxygen

• removes oxygen and makes carbon dioxide

• removes carbon dioxide and makes water vapour

• removes oxygen and makes water vapour

Which of the following three are fossil fuels

• coal, oil and natural gas

• coal, oil and nuclear

• oil, coal and uranium

As Earth cooled and water vapour condensed, what formed on Earth's surface?

• oceans

• mountains

• rainforests

What effect did the evolution of photosynthesising plants and algae have on the amount of carbon dioxide in the atmosphere of the early Earth?

Select an answer and a reason.

• The amount of carbon dioxide decreased.

• The amount of carbon dioxide increased.

• Plants and algae use carbon dioxide during photosynthesis.

• Plants and algae produce carbon dioxide during photosynthesis.

The Ozone layer is

• A layer of oxygen protecting us from UV rays

• A layer of carbon dioxide protecting us from UV rays

• A layer of particles causing global dimming

What is the major source of atmospheric pollution?

• acid rain

• combustion of fuels

• global warming

High levels of carbon dioxide in the atmosphere are causing the average temperature of Earth to increase. This rise in the average temperature of Earth is called .....

• global warming

• climate change

• global dimming