inches or centimeters
The measure unit of a kilometer stick is kilometer.
secret
numerator; to ---apex
You don't really "convert a unit of measurement"; you convert from one unit to another. The two - "from" and "to" are always required.
to measure a small trashcan
centimeters
cm
PPB
hertz Hz
A birthday card is a greeting card given to someone to celebrate his or her birthday.
An instrument called micrometer is used to measure paper or card thickness.
As far as I am aware, CO is not a unit of measure.
A unit can be a measure of length. It is one-dimensional. A squared unit can be a measure of area. It is two-dimensional. A cubic unit can be a measure of volume. It is three-dimensional.
The common word that goes before "present," "cake," "card," and "party" is "birthday." You often have a birthday present, birthday cake, birthday card, and birthday party.
On someone's birthday.
This depends on what unit you are using to measure in. However, area will always be measure in (unit)^2.
you have to be 100 to receive a birthday card from the queen