Pollution that falls out of the atmosphere that originated from a factory is nonpoint, or secondary source, pollution with the factory being the point, or primary source, of the pollution. is acid rain a point source (primary) or nonpoint source (secondary) of pollution? what is the effect of acid rain on the environment?

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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