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The answer is 7.3 x 1012 kg

1 tonne = 103 kg

103 x 7300 x 106 = 7.3 x 1012

another way of doing this would be to convert the tonnes to megatonnes 1st saying 1 megatonne is 109kg. So 7300 Mt is 7300 x 109 kg. Move the decial to express it as kg becomes 7.3 x 1012 kg

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15y ago

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