science
Grade-4-
Easy
Question
The shell of an eggs is porous because
- To allow transfer of gases
- To allow transfer of water
- To allow transfer of liquid
- To allow transfer of food
Hint:
Life grows inside the egg and it needs oxygen.
The correct answer is: To allow transfer of gases
The correct option is a) To allow transfer of gases.
The shell of egg is semipermeable. The growing chick inside the egg uses up oxygen and releases carbon dioxide. The pores are trumpet shaped microscopic ducts. The eggshell has around 7,000 pores which allow the exchange of carbon dioxide with fresh oxygen.
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