Answer:
to make the uniformity in the world measurement
Explanation:
means everyone could measure 1 kg in world 1 kg only in any part of world so it is bought in action of standard measurement
The Mississippi River has many small tributaries, but its primary tributaries are the Ohio River and the Missouri River. The Amazon River also has a large number of tributaries, including the Rio Negro, which is one of the largest rivers in the world in terms of volume. The Nile’s primary tributary is the Atbara River.
D make ah model or a one of those
Some of the world would be dark and some would be light so it would get confusing
