What is the main source of energy for most processed at earths surface

Solar/Radiant/Sun Energy ( they all kinda mean the same thing)

Explanation:

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

2%? i tried finding the exact sorry if it's not 100% correct ; -;