8.
Which of the following is used to lift heavy objects like cars?
(a) Ramp
(b) Balance
(c) Sea-saw
(d) Both (b) and (c)
01051974kartikeygupt:
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Answer:
(a). wiwjhsgsjdjdidokdjdjd
Explanation:
sjhsgshshsjsjslsjshzgsjskwkwjshxfdgwjwgdyshekwhs
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