Question

Which of the following is a reasonable estimate for the number of centimeters in a kilometer? A. 1 × 10-3 cm B. 1 × 10-5 cm C. 1 × 105 cm D. 1 × 103 cm

Answer 1

Answer: C 1*10^5

Explanation:

There are 10^2 cm in a meter, and 10^3 meter in a kilometer, so there are 10^2 * 10^3 = 10^5 cm in a kilometer