Question

12 in four tumblers, alisngar detergent powder and sand are put separately. Each
of the tumbler contained equal quantity of water. Which of them is insoluble in
Asahi
Sugar
Detergent powder
Sand
18. Identify the correct method to separate grains thom bundles of stalks.
A Winnowing
B Threshing
C. Handpicking
D. Sieving
19. The shape of a paper sheet changes after making an aeroplane by folding it.
What type of change is it?
A Slow, reversible change
B. Slow, chemical change
C Fast, reversible change
D. Fast, chemical change.​

Answer 1

Answer:

12. Sand

18. Threshing

19. Fast, reversible

Explanation:

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