The diagram shows the results of an experiment using leaves with the same surface area from two different species. Each leaf was left on a balance in daylight in a closed room and their mass recorded at 1 hour intervals.
What could explain these results?
Leaf 1 has a thicker cuticle than leaf 2.
2 )
Leaf 1 is thinner than leaf 2.
3 )
Leaf 2 has stomata protected by hairs and leaf 1 does not.
4 )
Leaf 2 has sunken stomata and leaf 1 does not.
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