How can someone make a model of a tornado? using cotten balls and a pen? explain.

Shanti wraps the gift she is taking to a friend's birthday party. she doesn't have very much paper, so she does not overlap any of the edges. how much paper did it take to cover the gift?

The yellow river is also known as the huang he river? true or false

How does the parallax of a nearby object compare to that of an object farther away?