The Questions are in the Pictures Attached Please show the steps so that I may finish the rest on my own

Explain why scientists use shared characteristics to make cladograms.

The image shows a process that releases nuclear energy which statement best identifies the process shown the process must be fusion because energy is released the process must be fusion because of have your nucleus formed a smaller nuclei the process must be fission because a large nucleus breaks into smaller nuclei the process must be fission because neutrons are formed

What is the most important factor in determining climates.