Class 7 science Practice Tests
Class 7 Science Online Tests
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MCQ 1: The force of friction can be reduced by the help of
MCQ 2: A force which occurs when two surfaces come in contact and slows down motion while acting in
MCQ 3: Friction between moving parts of machine causes
MCQ 4: There will be a great distance in stopping a vehicle which is moving
MCQ 5: In order to reduce air and water resistance, objects are shaped in
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