Why does the mass of steel wool increase after getting burned? Help pls

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

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

How can one make a supersaturated solution? (apex)