Breathe and calm down, you got this
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There are no choices, but humans need a constant supply of fressh water because without it no human would survive. If there were salt water we cant drink it because its to salty and may be contaminated. Hope this Helps!
"Longitudinal waves" is the wave among the following choices given in the question that <span>cause the matter to move perpendicular to the direction in which the wave is traveling. The correct option among the two options that are given in the question is the first option. I hope that this answer has come to your help.</span>
