Why does tea have caffeine?!


Question: Why does tea have caffeine!?
I thought tea came from the dried leaves of certain plants!.!.!. so where does the caffeine come from!?Www@FoodAQ@Com

Answers:
Many plants contain caffiene!. Tea is one of them just like coffee!. It is a naturally occurring alkaloid!.Www@FoodAQ@Com
It comes from the leaves!. Coffee is made from plant parts, too!. Tobacco is an upper and it is a leaf!.

http://en!.wikipedia!.org/wiki/Tea

http://en!.wikipedia!.org/wiki/CaffeineWww@FoodAQ@Com
it comes from plants which has stimulative ingredientsWww@FoodAQ@Com
i didn't know tea has caffeineWww@FoodAQ@Com


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