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The raw materials for photosynthesis are water and:
ACarbon dioxide
BCarbon monoxide
CCalcium dioxide
DCalcium monoxide
Answer & Solution
Correct answer: A. Carbon dioxide
1. Both are taken in from the surroundings.
2. They become carbohydrates in sunlight.
3. The other raw material is carbon dioxide.
_Source: NCERT Class 10 Science, Ch 6 'Life Processes'_
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