True or false?

If the prefix micro- is used, the basic unit is divided by 1,000,000

True. If the prefix "micro-" is used, it means dividing by 1,000,000.

True.

The prefix "micro-" denotes a factor of 1/1,000,000. Therefore, if the prefix micro- is used, the basic unit is divided by 1,000,000. For example, a microgram is equal to 1/1,000,000 of a gram.