No, unless you are talking about a color that incorporates the name of a person, such as Van Gogh yellow.
Yes, names of countries are capitalized.
No, color names are generally not capitalized unless they are part of a proper noun, such as a specific brand or organization name. For example, "red sweater" would not be capitalized, but "Crimson Tide" would be.
No. Ordinary animal names do not need to be capitalised.
"Roman" should be capitalized, but "goddess" should not me. The names of Roman goddesses are proper nouns and should be capitalized.
Yes, capital cities and country names are considered as proper names, and proper names are capitalized. Butadjectives derived from those are not, unlike in English.
Yes, names of countries are capitalized.
No, color names are not typically capitalized unless they are part of a proper noun or start a sentence. For example: "I like the color blue."
All proper nouns should be capitalized but all words are capitalized at the beginning of the sentence.
No, color names are generally not capitalized unless they are part of a proper noun, such as a specific brand or organization name. For example, "red sweater" would not be capitalized, but "Crimson Tide" would be.
No, the names of most herbs are not capitalized
Yes. In English, the names of languages are always capitalized.
Only if it is the first word in a sentence.
Proper nouns, names and the begging word for every sentence
Yes, protein names are typically capitalized in scientific writing.
No. Only the first (or only) letter of chemical abbreviations (O in this case) needs capitalized, but not the names of chemicals when they are spelled out.
No. Ordinary animal names do not need to be capitalised.
No. It is not mandatory. As long as they are spelled right, they should work.