Many Adults Can’t Pass This Elementary School-Level Quiz, Can You?!

During photosynthesis, plants give out what?

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Photosynthesis is the process that plants use to convert light energy into chemical energy. During this process, plants give out oxygen as they take in carbon dioxide. Photosynthesis produces and maintains much of the earth’s oxygen supply.

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David McNew/Getty Images

David McNew/Getty Images

During photosynthesis, plants give out what?

• Carbon dioxide
• Oxygen
• Nitrogen
• Hydrogen