Chemistry AQA 9-1 Paper 2 Chemistry of the atmosphere Trilogy

This gas was in high concentrations in the early atmosphere, and later condensed to form Earth's oceans. 

• oxygen
• carbon dioxide
• sulfur oxides
• water vapor

Tags

NGSS.MS-ESS2-4

This gas was in high concentrations in the developing atmospheres and later dissolved into rainwater, added to the oceans, then settled to the bottom of the ocean. 

• oxygen
• carbon dioxide
• argon
• water vapor

According to the model, how did CO₂ get into the atmosphere?

• evaporation
• condensation
• volcanoes
• sediments

What gas was most prevalent in Earth's early atmosphere?

• carbon dioxide
• oxygen
• water vapor
• sulfur oxides

What gas were we missing in Earth's early atmosphere?

• carbon dioxide
• oxygen
• water vapor
• sulfur oxides

What happened to the water vapor from Earth's early atmosphere?

• evaporated
• condensed
• boiled
• decreased in density

Where did the water for oceans on earth first come from?

• evaporating water vapor
• condensing water vapor
• it has always been there
• it condensed from the sediment

How did carbon dioxide first start getting into the oceans?

• dissolved in rain water
• weathered from sediment
• exhalation from early life forms
• volcanoes

What happened to the pH of the ocean water as more carbon dioxide was added to the oceans?

• more acidic
• more basic
• more neutral
• increased in pH

What happened to the carbon dioxide that was dissolved in the early oceans?

• It evaporated
• It turned into sediment
• It was changed into oxygen
• I can't think of another good wrong answer

Tags

NGSS.HS-ESS2-6