4. Sometimes, the Sun discharges large amount of energetic particles that are hazard to astronauts in space. True
False

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

you should wear a lead protective shield when having teeth x-rays

hope i

-lavira : )