Question

how many significant figures does the number 1.006 × 10⁷ have?

Explanation:

Step1: Recall significant - figure rules

Non - zero digits are always significant. Zeros between non - zero digits are significant.

Step2: Analyze the number 1.006

In the number 1.006, 1 is a non - zero digit, and the two zeros between 1 and 6 are also significant, and 6 is a non - zero digit.

Answer:

4