Students set up the stream table you see here. The original set-up resulted in a slightly meandering stream you see here. Water flows a hole in the bottom of the vessel at one end of the stream table. Several students wondered what would happen if the hole was enlarged. Students observed all but one of the following with this change.

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the answer is c a tornado

the sun creates it's own light, also gives light and life to bunch of stuff like plants,animals,humans etc.photosyntesis is the process of making food which needs sun,water,nutrients etc.