No, ghostwriting is not plagiarism. Done correctly, there is nothing wrong with it. Hard to argue this professor did it correctly

Comparing high-energy events, especially ones that cause destruction, to weapons that have been used is very common, not just in “murica”

The lack of specificity as to what kind of atomic bomb is silly, though.

Largest to smallest is way more logical than smallest to largest. You start general and get more specific as you progress. It is in genderal a better approach to conveying information and cataloging data. Not just dates.

The App Formerly Known as Twitter does have a lot of porn. Maybe you’re on to something here.

Neither of those are true. Some steel and leathers may be treated to make them anti-microbial, but they are generally not