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An adaptation for better gaseous exchange in plant leaves is:

1. hair on lower surface
2. multiple epidermis
3. waxy cuticle
4. stomata on lower surface away from direct sun rays

Correct answer: stomata on lower surface away from direct sun rays

Solution

Stomata are the pores used for gas exchange, and placing them on the lower surface helps limit water loss because that side is less exposed to direct sunlight. This arrangement supports efficient exchange of gases without excessive transpiration.

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