CTET 2 Math and Science Feb 2016 Paper
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Question : 70 of 120
Marks:
+1,
-0
Which of the following statements are true about veins in human circulatory system?
A. All veins carry carbon dioxide-rich blood.
B. Veins have thin walls.
C. Veins carry blood from different organs to heart.
A. All veins carry carbon dioxide-rich blood.
B. Veins have thin walls.
C. Veins carry blood from different organs to heart.
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