This week’s questions

Why do we humans laugh and why is laughter uniquely human?

Sharique Imran, Patna, Bihar

Why are sea organisms living deep in the sea not affected by the high water pressure?

K.Akhil, Hyderabad

Why does hair on our head keep growing but hair on eyebrows and eyelashes grow to a certain length and then stop?

Abhishek Goyal, Sunam, Punjab

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