This is to prevent water loss by the trees. Under drought or dry conditions, plants may close their stomata to limit the amount of water that evaporates from their leaves a process called transpiration. In this process water diffuses through the stomata into the atmosphere, in a bid to preserve water plants may close their stomata, especially during very dry climates.
If they live in a river, they would most likely need fins (to swim) and gills (to breathe under water)
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Answer: polar ice caps form
Explanation:
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