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Mathematics, 07.01.2021 19:00 hhvgbv49551

A speck of dust is 8.2 x 10-7 m wide. Which of the following is the best way to rewrite this quantity, using more appropriate units?
A. 8.2 x 10-7 m
B. 8.2 x 10-4 mm
C. 8.2 x 10-10 km
O D. 8.2x10-5 cm
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