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Millimeters in 1 foot?
1 foot (12 inches/1 foot)(2.54 centimeters/1 inch)
= 30.48 centimeters * 10
= 304.8 mm
about 500 million to 1 billion
20
20mm
3 to 5
10
60 mm = 6 cm
3.8cm
340mm
1000mm
1 cm = 10 mm so two termites would fit.
. 1 in = 25.4 mm
1micron=1\1000 mm