The crest is cover distance. <span>The </span>speed<span> of a wave indicate how fast wave is moving. </span>T<span>he speed is the distance traveled by a crest in a given interval of time. Greater distance in same amount of time means wave travel faster.
speed of wave = distance/time.
speed of wave = 0,2 m </span>÷ 0,2 s = 1 m/s.
If you're looking for "what rocks are formed by changes..." it's Igneous Rocks.
They do this so that when you drink it or use it the contaminates that used to be in it dont make you sick
Yes what the other person said can I plz get an thanks
