Which set of numbers is arranged in descending order?

Question

A: 7.6 X 10^-25, 7.2 X 10^-30, 7.2 X 10^-25, 7 X 10^-30
B: 7.6 X 10^-25, 7.2 X 10^-25, 7.2 X 10^-30, 7 X 10^-30
C: 7 × 10^−30, 7.2 × 10^−25, 7.2 × 10^−30, 7.6 × 10^−25
D: 7.2 × 10^−30, 7 × 10^−30, 7.6 × 10^−25, 7.2 × 10^−25

Answer 1

The set of numbers arranged in descending order is:
C: 7 × 10^−30, 7.2 × 10^−25, 7.2 × 10^−30, 7.6 × 10^−25