Moderate
Extraction and cleaning is:
Correct answer: D. All of the above
- A. Screening
- B. Fanning
- C. Floating
- D. All of the above
Explanation
Screening, fanning and floating are all used in seed extraction or cleaning: screening separates by size, fanning removes light impurities, and floating separates lighter or damaged material. Hence, all the listed methods are included.
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Practise Silviculture
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