Match the column....
1. Friction causes wastage of energy.
2. Friction produces heat.
3. Friction causes wear and tear.
4. Lubricating moving surface.
5. Using compressed air.
(a) rubbing the palms.
(b) oil and grease.
(c) hovercraft.
(d) work against friction.
(e) worn out shoe - soles
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Answer:
I think the answer is
- D
- A
- E
- B
- C
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