grams
You could use grams or ounces. You could use grams or ounces.
You could measure the mass with grams.
You could, but it might be best to use Kilograms (1000's of grams)
A kilometer is a measure of length. 1200 grams indicate the mass of something. You can't convert one into the other, although perhaps you could if you had 1200 grams of something specific that you could measure the length of. Right now, in this form, your question is impossible to answer.
A "pouch" is not an official measure -could be any size.
it depends if its small kilo but big grams
I will measure a book with grams
Grams
Metres measure distance, whereas grams measure weight. They cannot be directly associated
Grams are a measure of weight, centimeters are a measure of length. They are not comparable.
You would measure a tractor trailer in grams.