pls answer i need it know NONSENSE=Auto-report​

Answer:
1.Scooping
2.Seiving or Sifting
3.seiving
4.i dont know
5.Decantation
6.Evaporation
7.Filtration
8.magnetism
9.Winnowing
10.Seiving
Explanation:
i dont know if the number 7 is correct...i dont know to the answer in no.4..WC