Home › CBSE Class 10 › Science › class10_life_transport_excretion › Veins contain valves so that blood flows only in:
Veins contain valves so that blood flows only in:
AOne duration
BOne diversion
COne direction
DOne dimension
Answer & Solution
Correct answer: C. One direction
1. The blood is no longer under pressure.
2. Backflow must be prevented.
3. It flows in one direction only.
_Source: NCERT Class 10 Science, Ch 6 'Life Processes'_
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