1 . বিজ্ঞানী Hatch & Stack এর পূর্ণনাম-

• A. B.D. Hatch & C.R. Stack
• B. C.D. Hatch & B.R. Stack
• C. C.D. Hatch & C.R. Stack
• D. B.D. Hatch & A.D. Stack

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Answer: Option C

Explanation: