What gas do plants take in from the air for photosynthesis?

Carbon dioxide.

Start playing free

  1. Helium
  2. Oxygen
  3. Carbon dioxide ✔

Why: Photosynthesis uses carbon dioxide and water, powered by sunlight, to make sugars.

Huh, didn't know that: Photosynthesis uses carbon dioxide and water, powered by sunlight, to make sugars.

The dad joke
Carbon dioxide is a breath of fresh air for plants.
Like this card?
Play the game

References

Answer: Carbon dioxide. Photosynthesis uses carbon dioxide and water, powered by sunlight, to make sugars.

  1. Botany en.wikipedia.org/wiki/Botany
    convert water and carbon dioxide into sugars
    Checked 2026-11-07.

Think this answer is wrong? Tap "Challenge this answer" on the card in the game and tell us why.