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How many significant figures are present...

How many significant figures are present in the following ?
i) 0.0025, ii) 208, iii) 5005, iv) 126,000 v) 500.0, vi) 2.0034

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Write down the number of significant figures in the following . (i) 0.007 (ii) 2.64xx10^(24) (iii) 0.2370 (iv) 6.320 (v) 6.032 (vi) 0.0006032

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0.00025 has how many significant figures?

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