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What happens if all flowers and plants die out?

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Amy Quatts explained it perfectly. We would be f*cked. Do you know why Carbon dioxide isn't as big of a deal as it would without plants? It's that they require CO2 but they give out oxygen for us. read more

We will die. Without all plants,there will no longer be enough oxygen for humans and animals. We wont have enough food like vegetables and fruits. We will have to rely on animals (sorry vegans). Long story short, we will not have enough basic needs for both animals and humans to survive. read more

Well, for starters, Earth would be much quieter. Almost all living creatures on our planet depend on plants for food and oxygen, either directly or indirectly. So if all the plants disappeared, eventually so would almost all the other life. Also, Earth would be hotter. Plants take carbon dioxide out of the atmosphere. read more

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Why are my plants turning yellow? | MNN - Mother Nature ...
Source: mnn.com