Metre
kilometers
Centimetres.
I would use meters.
meters
While the dog is standing up on all fours, measure from the floor to the top of the shoulder.
If you mean measure height then it would be the metre if you mean measure weight it would be Kilograms
With a tape measure.
metres
ruler
They would use a rain gauge.
Scientist would use milimeters.
kilometers
a meter stick.
meter
Centimeters
Metres.
You would use meter's to measure an oak tree's height.