Answer:
1. use of magnets
2. hand picking or physical manipulation
3. hand picking or sifting
4. sieving
5. filtration or decantation or sifting
6. decantation or filtration
7. winnowing
8. sifting
9. decantation or filtration
10. decantation or filtration
Explanation:
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Answers & Comments
Answer:
1. use of magnets
2. hand picking or physical manipulation
3. hand picking or sifting
4. sieving
5. filtration or decantation or sifting
6. decantation or filtration
7. winnowing
8. sifting
9. decantation or filtration
10. decantation or filtration
Explanation: