Tutor khan

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Tutor khan is all about education.
You can learn modern knowledge of science especially chemistry and biology from tutor khan.molecular structures
different compounds
preparations of chemicals
animals and plants
animals videos.plant videos
information about plants,animals like fish,insects,amphibians,reptiles,birds,mammals,chemicals,compounds,structures of molecules.chemical names,chemical formula,history of chemicals,a lot of about livings and chemicals
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NOTE:I do try to obtain the information 

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