Multiple choice

Which of the following are required for life to exist on earth?

  1. High temperature range, presence of water, blanket of ozone

  2. Low temperature range, presence of water, blanket of ozone, atmosphere

  3. Suitable temperature range, atmosphere, presence of water, blanket of ozone

  4. Suitable temperature range, carbon dioxide, presence of water, blanket of ozone
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Suitable temperature range, atmosphere, presence of water and blanket of ozone are required for life to exist on earth.

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