what structures allow water vapor to escape the leaves of a plant?

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Stomata are tiny pores on a plant’s leaves that allow water vapor to escape. When a plant gets hot enough, the water inside also heats up enough to begin evaporating and it needs a place to exit the plant. When the water vapor escapes, it takes heat energy with it and helps cool the plant. Stomata also serve to allow the exchange of gases, allowing carbon dioxide to enter and oxygen to leave.

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