Question

why are the leaves of tree on a mountain are smaller in size​

Answer 1

Answer:

Leaves high in the tree canopy receive a great deal of sunlight. These leaves tend to be smaller in size (and, therefore, have reduced light absorptive surface area) and tend also to have complex edges and lobes (which enables them to disperse absorbed heat very rapidly).

Answer 2

Explanation:

A large portion of the leaf characteristics observed at high altitude is lost when plants are transplanted to low elevations. ... The fact that cell size is not reduced at high altitudes, indicates that mountain plants and their respective organs are small because they produce fewer cells.

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