Arrange the measurements from least to greatest. 1.8 micrograms 1.8 grams 1.8 milligrams 1.8 kilograms

The order follows:  

Explanation:

Gram is unit which is used to expressed mass of a substance. Many other units can be used to express the mass of a substance. All the units are inter changeable.

For the given values:

Conversion factor from Gram to micro gram

So,

All other units are expressed in this standard unit of mass and then, it will be compared.

Conversion factor from Gram to mili gram

So,

Conversion factor from Gram to mili gram

So,

Hence, the order follows:  

wanswer:

explanation: