Which of the following characteristics of living things could be applied to an automatic door at a supermarket?
a. living things grow and develop
b. living things evolve over generations
c. living things respond to stimuli in the environment
d. living things maintain a stable internal environment

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

the contamination

we are putting to many trash.