Question 11 • FL-1200330-Algebra 2 CR
Each whole-number increase on the Richter scale represents 10 times the intensity. The difference between magnitudes 8 and 5 is 3, so the intensity ratio is 10³ = 1,000. Thus A is correct; B shows the same calculation as 10⁸ ÷ 10⁵ = 10³, and C explains the three-step increase.
AI-written and checked against the verified answer.