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পৃথিবীর গড় ঘনত্ব কত?

3.3 \times 10^{3} K g m^{- 3}

5.5 \times 10^{3} K g m^{- 3}

7.7 \times 10^{3} K g m^{- 3}

1.3 \times 10^{3} K g m^{- 3}

ANS : 2

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