State the number of significant figures in each of the following numbers:
(i) 207.35, (ii) 0.00368, (iii) 653, (iv) `3.653 xx 10^(4)`, (v) 0.378

Explanation

To determine the number of significant figures in each of the given numbers, we will follow the rules for identifying significant figures. Here’s a step-by-step solution:

### Step 1: Understand the Rules for Significant Figures
1. **Non-zero digits** are always significant.
2. **Leading zeros** (zeros before the first non-zero digit) are not significant.
3. **Captive zeros** (zeros between non-zero digits) are significant.
4. **Trailing zeros** in a decimal number are significant.
5. In scientific notation, all digits in the coefficient (the number before the exponent) are significant.
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