Question

HARDEST MAN MADE SUBSTANCE EVER KNOWN.
DON'T SPAM.​

Answer 1

Explanation:

1. The whistling sound happens when air moves through narrowed airways, much like the way a whistle or flute makes music. Many health problems can cause wheezing, including: Asthma. This condition, in which your airways narrow, swell, and make extra mucus, can make it hard to breathe

Answer 2

Answer:

Graphene

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