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[" 43.If the distance between the earth ...

[" 43.If the distance between the earth and sun were half its present value,the number of days in a year would have been "],[[" (a) "64,5," (b) "129," (c) "182.5," (d) "730],[" 44."," The distance of the centres of moon and earth is "" D "" The mass of carth is "81" times.the mass of the moon.At what "]]

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