Several reservoirs hold water during the water cycle.
which one identifies the aquifer ?
a.) water in the clouds
b.) water falling from clouds to earth
c.) water stored underground
d.) water in a lake or ocean

d

Explanation:

reservoirs are places were water are held for a lond period of time. Do a lake or ocean is a place where water is held for a long period of time.

when the displaced particles are perpendicular to the direction the wave travels, is called a transverse wave, whereas in longitudinal wave the displace practices are parallel to the direction of the wave.

in the given image:

first image shows - longitudinal wave

second image shows - transverse wave

third image shows - longitudinal wave

fourth image shows - longitudinal wave