how many significant figures does 0.0560 have?\no 2\no 3\no 4\no 5

Explanation:

Step1: Identify non - zero digits

Non - zero digits are significant. In 0.0560, 5 and 6 are non - zero digits.

Step2: Consider leading zeros

Leading zeros (zeros before non - zero digits) are not significant. The 0s before 5 are not significant.

Step3: Consider trailing zeros

Trailing zeros after a non - zero digit and after a decimal point are significant. The 0 after 6 is significant.

Answer:

B. 3