The answer depends on which characteristic you wish to measure: its diameter, volume, mass, weight, etc.
The answer depends on whether you wish to measure its length or area or some other characteristic.
That depends what you want to measure: for example its length, its width, the length of a diagonal, its area, its albedo, its sound absorption, etc.
square meters
The basic metric unit for length is the metre. Rivers would be measure in kilometres (1,000s of metres)
The appropriate unit is grams.
Fahrenheit is a customary unit
Dude what the hec
what unit would you the length of a shoe? mm,cm,dm,m, or km.
Cm
Seconds
It depends on what you want to measure. Their mass or size?
Pint.
fluid ounce
Either inches or millimetres Or centimetres.
Probably Centimeters
pounds
Miles.Miles.Miles.Miles.
Inches.
In most countries, it is customary to measure that in liters.
It is customary to use the kilogram - though that is technically not a weight, but a mass.