yes.
because they need room for the particles to move around
Gasses spread out to take up as much space as they can but it really depends on the amount of gas.
That depends on how big it is.
about 6 cm by 10cm
Enough room that you can see them
It won't, Magnesium won't blow up.
because gasses always fill up their container.
one hundred wind turbines take up one kilometre of land
about half a a humans normal room
Titanic was 882 ft. long.
Yes, apps take up memory and space on your iPod.
A Bose Subwoofer does not take up too much room. The average size of a Bose Subwoofer is about 6 inches by 9 inches. However, there is another model that is 8 inches round.