How many significant figures are present in the following ?
(i) 0.0025
(ii) 208
(iii) 126,000
(v) 600.0
(vi) 3.0034.

Explanation

(i) `0.0025` has two significant figures
(ii) `208` has three significant figures
(iii) `5005` has four significant figures
(iv) `126,000` has six significant figures
(v) `600.0` has four significant figures
(vi) `3.0034` has five significant figures.