Category :
O/L
Subject :
Science
Year :
2020
Medium :
Sinhala medium
Question Number :
19
Time Passed :
2h
1
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40
(1)
රුධිරය.
(2)
පෝෂක.
(3)
ඔක්සිජන්.
(4)
රෝග කාරක.
