Write down the number of significant figures in the following.
`(i) 0.007 " " (ii) 2.64 xx 10^(24) " " (iii) 0.2390`
`(iv) 6.320 " " (v) 6.032 " " (vi) 0.0006032`

Explanation

To determine the number of significant figures in each of the given numbers, we will follow the rules of significant figures:

1. All non-zero digits are significant.
2. Any zeros between significant digits are significant.
3. Leading zeros (zeros before the first non-zero digit) are not significant.
4. Trailing zeros in a decimal number are significant.

Now, let's analyze each number step by step:
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