The digestive system breaks down food, the respiratory system takes in oxygen, and the cardiovascular system delivers the oxygen and food to the cells.
Plant ® atmosphere ® animal
The answer is underwater eathquakes.
Earthquakes are a shaking of the ground that when observed on earth, can cause many damages mainly on hills and mountainsides causing avalanches. When they occur underwater though, the water gets lifted (normally from the sea) and generates giant waves that can sometimes reach the coast.
Hope it helped,
BioTeacher101
