What gives ocean waves energy? a. spits c. sea stack b. wave erosion d. wind

The correct answer would be d. wind.

The wind blowing above the ocean surfaces are the main cause for the formation of waves.  

In many areas, the wind possesses enough force and consistency to produce continuous waves all along the shoreline.

The energy associated with ocean waves is extracted with the help of wave power devices.

They either extract the energy from the surface motion of waves or from the fluctuations in the pressure below the surface.

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands