Large forest fires, started by lightning, have been common in parts of the Western and Northwestern United States in the past few years. The forest ecosystem is changed by this
natural disaster. In addition to the loss of property, there are other ways that forest fires affect
the environment.
Which of the following is a result of a large forest fire?

the answer to your question is a plant

b.have there own function.

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