Question

HELP?!

Which of the following items could have a width of 1.2 * 10^-3 meters?

A. Dust particle
B. Rock
C. Suitcase
D. Ice cube

Answer 1

A because of the negative power

Answer 2

$1.2*10^{-3}= \frac{1.2}{1000}=0.0012 \ m \\ \\ 0.012 \ m=0.12*100 =1.2 \ cm$

So, which of the following items could have a width of 1.2 cm?
I think it's D. Ice cube