What is earwax for?

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What is earwax for?

Clip from Nina and the Neurons  |  Season 6  |  Episode 8  |  BBC CBeebies  |  May 16, 2017

Isn't it a bit strange that we have wax in our ears so why is it there Nina finds out.

Isn't it a bit strange that we have wax in our ears so why is it there Nina finds out.

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