Quaggas once lived in south africa. they are now extinct. people hunted them for their hides and meat. quaggas fed on grass, which people also used to feed their sheep and goats.
based on these facts, what is the least likely reason the quaggas became extinct?
a) temperatures changed.
b) they had no food to eat.
c) they had no space to live.
d) people hunted them too much.

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

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.