Other questions in this quiz

2. Which is the main gas in the atmosphere?

  • Argon
  • Nitrogen
  • Oxygen
  • Carbon Dioxide

3. Which of these makes up 21% of the modern atmosphere?

  • Oxygen
  • Argon
  • Nitrogen
  • Carbon Dioxide

4. Which of these made up most of the EARLY atmosphere?

  • Carbon Dioxide
  • Oxygen
  • Nitrogen
  • Argon

5. Why did the proportion of oxygen go up as the atmosphere developed?

  • Trees gave out oxygen
  • Photosynthesis let it out
  • It was released from the rocks
  • It was released as fossil fuels were burnt

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all The earth and its atmosphere resources »