ButchTheFileMetableviz
Answered

9. stones from shells?
A. filtration
B. sieving
C. magnetism
D. picking
10. copper oxide from a suspension in water?
A. filtration
C. magnetism
B. winnowing
D. decantation​

Sagot :

Celestialrosieviz

QUESTION:

9. stones from shells?

  • A. filtration
  • B. sieving
  • C. magnetism
  • D. picking

10. copper oxide from a suspension in water?

  • A. filtration
  • C. magnetism
  • B. winnowing
  • D. decantation​

ANSWER:

9. D. Picking - picking is a separḁting process that is used to sepḁrate solids -solid mixtures. Since shells and stones are both solids, picking is the best option.

10. A. filtration - filtration is used to sepḁrate liquid-solid mixtures. When the copper oxide is mixed with water, it becomes a suspension.

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