science
Grade-4-
Easy

Question

The process by which animals sit on their eggs so that they can hatch is known as

  1. Molting
  2. Metamorphosis
  3. Incubation
  4. Hatching

hintHint:

Sometimes human babies are also kept in machines to keep them warm.

The correct answer is: Incubation


    The correct option is c) incubation.
    Oviparous animals after laying sit on the eggs to keep them warm till the eggs hatch. During the incubation period the egg develops embryo inside it which slowly develop into a baby. It takes around 20-21 days for hatching.

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