After hatching by the hen, the young chicks come out of eggs within (UPSC Prelims/1979)

Q. After hatching by the hen, the young chicks come out of eggs within
(a) One week
(b) Two weeks
(c) Three weeks
(d) Four weeks

✅ Correct Answer: (c) Three weeks

The incubation period of a hen’s egg is about 21 days.
During this time the embryo develops inside the egg.
The hen keeps the eggs warm by sitting on them.
After about three weeks the chicks hatch out of the eggs.

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