No, it is not a proper noun.
No, coral does not need to be capitalized.
The word evolution does not need to be capitalized.
No, it doesn't need to be capitalized.
No, circa does not need to be capitalized.
No, kinetic energy doesn't need to be capitalized.
It is a noun, but not a proper noun. So it is not always capitalized.
No, coral does not need to be capitalized.
The word evolution does not need to be capitalized.
No, it doesn't need to be capitalized.
No, it shouldn't be capitalized.
No, circa does not need to be capitalized.
No, kinetic energy doesn't need to be capitalized.
No. Queries do not need to be capitalized.
it does not need to be capitilized.
Yes, acronyms are typically capitalized.
No, the word "revivalist" does not need to be capitalized unless it is at the beginning of a sentence or part of a proper noun.
We have to cure ozone. To cure ozone we need to stop using ozone depleting substances.