What is a mutagen?
O
A. A type of mutation involving chromosomes
O
B. A mutation that is inherited from parents
O
C. An environmental agent that changes DNA
O
D. A way to test for chromosomal mutations
SUBM

it's answer C

Explanation:

In genetics, a mutagen is a physical or chemical agent that changes the genetic material, usually DNA, of an organism and thus increases the frequency of mutations above the natural background level.

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