Interpret the meaning of prefixes for very small and very large units of measurement, such as 'nano', 'micro', 'mega', 'giga' and 'tera'

1. Rule The World 20 - cm to mcm
2. Rule The World 19 - m to mcm
3. Rule The World 18 - nm to cm
4. Rule The World 17 - mm to nm
5. Rule The World 16 - mcm to mm