Answers

2016-04-17T23:53:30+05:30
See stomata are the openings on the leaves which function for the transpiration and exchange of material in and out of the leaf.<br />Therefore if the stomata were present in the upper part of the leaf then the stomata would have been blocked due to the dust particles. <br />And so due to the direct rays of the sun the transpiration would have been more.<br />Therefore more stomata are found in the lower part of the leaf.
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2016-04-18T21:43:06+05:30
Stomata in most plants are more in lower surface rather than on upper surface bcz on upper surface there would b more water loss
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