Density is an intensive property in that increasing the amount of a substance increase its density.
does
does not

does not

Explanation:

i did the quiz, the person above me gave me the wrong answer :p

probably not the "magnets"in the magnet, so to speak, are thought to be electrons orbiting in shells. vurrent loops two sides to the loop

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

hope this ! : )