You would use millimeters (mm) to measure the thickness of a house key, as it is a small unit appropriate for measuring such dimensions.
A common metric unit to measure a bird bath would be centimeters (cm) or meters (m). These units can help determine the dimensions and size of the bird bath accurately.
You would use the metric unit "liters" to measure the capacity of a hot water tank.
You would use kilograms (kg) to measure someone's mass in metric units.
You would typically use the metric unit of centimeters to measure the growth of your hair.
I would go with millimetres
Lengths are measured in meters.
You would use millimeters (mm) to measure the thickness of a house key, as it is a small unit appropriate for measuring such dimensions.
A common metric unit to measure a bird bath would be centimeters (cm) or meters (m). These units can help determine the dimensions and size of the bird bath accurately.
You would use the metric unit "liters" to measure the capacity of a hot water tank.
Metres
You would use kilograms (kg) to measure someone's mass in metric units.
You would typically use the metric unit of centimeters to measure the growth of your hair.
You would use liters (L) to measure the volume of a soda container in the metric system.
A common metric unit used to measure the length of a ship is meters (m). This unit provides a standard measure that is easily understood and conveyed in the maritime industry.
There are many different occasions when a person would want to measure the temperature using the metric system. For example, if a friend from the UK wanted to know the temperature at one's house in Wisconsin, it would be polite to convert the temperature to Celsius so that it makes sense to one's friend.
You would use the metric unit "kilograms" to measure the weight of a bag of groceries.