Evolution of the Earth's Atmosphere

Evolution of the Earth's Atmosphere

Multiple Select

which of these elements are used to make hydrocarbons?

• oxygen

• carbon

• hydrogen

• magnesium

• nitrogen

Multiple Choice

what is the word for burning?

• reduction

• combustion

• respiration

• photosynthesis

• thermal decomposition

Multiple Choice

which element is important for life on our planet?

• oxygen

• nitrogen

• carbon dioxide

• methane

Multiple Choice

what percentage of the Earth's atmosphere is oxygen?

• 78%

• 21%

• 0.93%

• 0.035%

Multiple Choice

what percentage of the Earth's atmosphere is carbon dioxide?

• 78%

• 21%

• 0.93%

• 0.035%

Multiple Choice

what percentage of the Earth's atmosphere is nitrogen?

• 78%

• 21%

• 0.93%

• 0.035%

Multiple Select

which gasses make up the remaining amount?

• water vapour

• argon

• carbon dioxide

• methane

• Hydrogen chloride

Multiple Select

which planets was the atmosphere of Earth similar to?

• Jupiter

• Mars

• Saturn

• Venus

• Mercury

Multiple Select

How was carbon dioxide reduced in the atmosphere?

• respiration by algae

• photosynthesis by algae

• formation of sedimentary rocks

• formation of fossil fuels

• erupting volcanoes