One characteristic of an El Niño event is . a. thermohaline circulation ceasing in the Pacific
b. formation of Antarctic Bottom Water ceasing
c. low atmospheric pressure intensifying over the eastern Pacific
d. downwelling occurring in the central Pacific
e. high atmospheric pressure intensifying over the eastern Pacific

During an El Niño event, the surface waters in the central and eastern Pacific Ocean become significantly warmer than usual. ... It also reduces the upwelling of cooler, nutrient-rich waters from the deep—shutting down or reversing ocean currents along the equator and along the west coast of South and Central America.

Explanation:

equal distribution i think.

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