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Axwr · Answer 1 · 2021-07-08T11:18:26+0000

Answer:

Step-by-step explanation:

Without photosynthesis there would be no oxygen in the earth's atmosphere and we wouldn't be here!

Rohit Gupta · Answer 2 · 2021-07-13T17:48:44+0000

Equally importantly, photosynthesis is the source of oxygen and also removes carbon dioxide from our atmosphere. Oxygen is required for cellular respiration, the process by which food is broken down into energy. Thus, human beings are also solely dependent on photosynthetic plants for their oxygen requirements.

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