Answer:
The change was physical, meaning it went from liquid to solid, or the other way around.
Explanation:
The speed of light is 299,792,458 meters per second in vacuum.
It's somewhat slower in any material substance, and different in
each substance.
(That's 186,282.4 miles per second.)
Answer:
To Put of a Fire.
Explanation:
incase an emergency happens, it's important to have a fir extingushier so the situation doesn't get worse and you can put out any possible fire's.
I feel like it is important, because it is always nice to learn about new things and keep your mind open, to expand your knowledge.