What are two factors in the atmosphere that can change the shape of
landforms?

water action and wind action

Explanation:

There are two main causes of change to be mentioned here and they are water action and wind action. The processes used by these actions are known as Weathering and Erosion.

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