Question

give me the answers for these questions. ​

Answer 1

For water waves, the disturbance is in the surface of the water, perhaps created by a rock thrown into a pond or by a swimmer splashing the surface repeatedly. For sound waves, the disturbance is a change in air pressure, perhaps created by the oscillating cone inside a speaker.

Answer 2

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1. filtration
2. cream
3. evaporation
4. hand picking
5. threshing
6. hand picking
7. grains
8. winnowing
9. sedimentation
10. solute, solvent

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