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Qus: Exchange of gases take place through small openings on the surface of the leaves are called:
Qusगैसों का आदान-प्रदान पत्तियों की सतह पर छोटे-छोटे छिद्रों द्वारा होता है, कहलाते हैं:
A. चमड़ी
B. रंध्र
C. ट्रेकिआ
D. इनमें से कोई नहीं
Solution
B. stomata
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