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As the upper surface is covered with a waxy cuticle which protects the plant from dehydration if the stomata were covered by a cuticle they would not be able to function.

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14y ago
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11y ago

so that it could prevent the sunlight from evaporating the excessive water loss from the plant through the stomata and also to prevent excessive water loss.

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Q: Why are stomata located on the underside of the leaf?
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