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Class 10 Science Medium Mcq English Medium

The heart has separate chambers mainly to prevent:

Question
The heart has separate chambers mainly to prevent:
Blood from clotting
Oxygen-rich blood from mixing with carbon dioxide-rich blood
Excess pressure build-up
Bacterial infection
Answer
Oxygen-rich blood from mixing with carbon dioxide-rich blood
Detailed Explanation
Since both oxygen and carbon dioxide must be transported, the heart's chambers keep oxygen-rich blood separate from blood carrying carbon dioxide.
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