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.
Which features of leaf X could explain these results?
1) thinner cuticle
2) sunken stomata
3) ability to roll the leaf
4) no trichomes on the leaf

1 )
1 and 3
2 )
1 and 4
2 and 3
4 )
1 only
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