No. It's not necessary.
Not if it is used as an independent noun (in reference to students, ie: I am an undergraduate at Hofstra. However, if used in reference to a title, ie: Hofstra Undergraduate Course Catalog, do capitalize.
Not unless it is part of the name of an organized group, ie., The Committee for Community Improvement.
Yes, you would capitalize a city. A city is considered a proper noun, and all proper nouns are capitalized no matter where they are located in a sentence. An example would be: My friends went to San Francisco today to go shopping.
IE stands for Ireland
Some English nouns that end with -ie are:auntiebeaniebirdieboogiebookiebootiebourgeoisiebriebrowniebudgiecaloriecamaraderiecolliecookiecooliecootiecutiedogiefaeriefoodiefootsiegeniehankiehoagiejalousieladdielassielielingeriemenagerirenecktienewbienightieoldieorangeriepiepinkiepixieprairiepreemieramieroadierookiesortiespeciestogiesweetietieveggiezombie
It is the domain for Ireland, which is what you are referring to.
You may be referring to Id Est, Latin for 'that is'.
Yes, I mean, look at the category that you're putting this question in! All jokes aside, the reason it is correct is because it is a proper noun (ie. a specific time period).
Not if it is used as an independent noun (in reference to students, ie: I am an undergraduate at Hofstra. However, if used in reference to a title, ie: Hofstra Undergraduate Course Catalog, do capitalize.
referring to a car as "wheels" ie. "whoa, check out his wheels."
Not unless it is part of the name of an organized group, ie., The Committee for Community Improvement.
I think you are referring to the phonetic alphabet ie. Alpha, Bravo, Charlie.....
US was Union, ie North
It depends on the atoms which you're referring to. Some atoms are small (eg hydrogen) and some are large (ie plutonium) It depends on the atoms which you're referring to. Some atoms are small (eg hydrogen) and some are large (ie plutonium)
Acronyms are always capitalized to distinguish them from ordinary words in the sentence, this is most important when the acronym is a word (IE WHO- World Health Organization as opposed to 'who'). You do not capitalize the individual words when spelling out the phrase UNLESS it is a proper noun. World Health Organization is capitalized, certified public accountant is not, United Nations is, unidentified flying object is not.
No. According to Swan's Practical English Usage page 553, you should only capitalize words according to the rules of capitalization. When referring to it as a proper noun, it must be capitalised. As a common noun, generally not. Also, if you start a sentence with the word, it has to be capitalized. Your example is not the beginning of a sentence, nor a name (proper noun), a title (Mr.), a point of a compass (North), a publication (Day of the Jackal). etc. etc. ie. the grammar rules associated with capitalization and punctuation.
Cubic Centimeters (referring to the engine displacement, ie the engine size). Specifically, the volume of the cylinder or cylinders.