8. When and where would you expect to find the highest rate of primary productivity? O A. In the temperate regions during the summer months
O B. In the tropics during the fall
O C. In the polar regions during the summer months
O D. In the polar regions during the fall

as resources become scarce because of population growth, the growth decreases after few years due to lack of resources and food.

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