Give reasons: (From Chapter named "Simple Machine")
1. We use tongs to catch a burning piece of a coal.
2. We use pulley to draw water from a well.
3. A second class lever multiplies the effort more than other levers.
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Answer:
1. because a burning piece of a coal is very hot to touch so we need something to pick it.
2. we can't go under the well so we need pulley.
3. ....................
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