Y11 Atmosphere Formation

How much Oxygen is in our atmosphere today?

• About 20%

• About 80%

• Less than 1%

How much Nitrogen in is in our atmosphere today?

• About 20%

• Less than 1%

• About 80%

Our earliest atmosphere was similar to which other planet in our solar system?

• Uranus

• Mars

• Pluto

• Jupiter

Where did the gases come from in our early atmosphere?

• Volcanic Eruptions

• Outer space

• Photosynthesis

• Respiration

How did the seas and oceans form?

• Photosynthesis

• Volcanic Eruptions

• Water Vapour condensing

Which of the following helped to reduce the levels of Carbon Dioxide? (Tick 2 boxes)

• Photosynthesis

• Volcanic Eruptions

• Dissolved into the oceans

• Respiration

Which of the following increased the levels of Oxygen in the atmosphere?

• Respiration

• Photosynthesis

• Volcanic Eruptions

• Sea levels rising

Which of these processes is increasing the amount of Carbon dioxide in the modern day atmosphere? (Tick 2)

• Rising Sea Levels

• Agriculture

• Deforestation

• Volcanic Eruptions