I need some websites for the answers to these questions:

Question

What is diffusion?
What causes diffusion?
Why is diffusion important to living organisms?

Thanks,
AMir

Answer 1

http://hyperphysics.phy-astr.gsu.edu/hbase/Kinetic/diffus.html

Answer 2

thanks! and I took your advice on my short story (deeper ever deeper) and I got a 100 I really appreciate what you did and I strongly look up to your critisism. ty

Answer 3

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