Question

1. Name the method used for obtaining clear water from muddy water.
2. How is cream obtained from unboiled milk?
3. Common salt is obtained from lake/sea water. Name the process behind this method.
4. What is the physical process behind the occurrence of rain ?
5. Which is a better method for separating sawdust from water - sedimentation, decantation,
or filtration ?​

Answer 1

Explanation:

(a) Threshing

(b) Filtration

(b) Evaporation

(d) Sedimentation and Decantation