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Bill Nye The Science Guy Season 3 Episode 15

Fish

A plant’s recipe for food has only three main ingredients: sunlight, carbon dioxide, and water. When plants make their food, they give off what animals need – oxygen. Without oxygen, animals like us wouldn’t be able to breathe. If plants weren’t here on Earth, we wouldn’t be here.

Bill Nye The Science Guy Season 3 Episode 15
Sep. 22, 1995