What does average speed mean

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

0.2348 grams of pbcl2 used to form 44.0 ml of solution.

Why are people not able to skip a dive to the deepest part of the ocean