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The weight of an object in the coal mine, sea level, at the top of the mountain are   W1,W2  and  W3 respectively, then

(a)    W1 <W2 > W3                            (b)  W1 =W2 =W3

(c)   W1 < W2 < W3                            (d)      W1 > W2 >W3

Answer:  a

(9)

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