A sentence with the word 'porcupine' in it is no different from any other sentence, it is just a sentence referring to a porcupine.
Because it just dosent ---There is no reason not to begin a sentence with because or any other word.
It's about the motivation behind why they use the word 'Oriental' or any other word.
yes you can; Can you write a sentence with the word any in it?
Only if it is the first word in the sentence. Chinese yen are similar to US dollars.
You only need to capitalize the word "billion" if it is the first word of the sentence...or if it is actually someone's name, or any other proper noun.
Yes, the word "starvation" should be capitalized at the beginning of a sentence like any other word.
The same way you would any other noun.
It depends on the context or sentence. The next word could be "than" if used to compare two things, or it could be any other word depending on the sentence structure.
Sponges absorb water and any other type of liquids.
Example sentence - We haven't any other disposable assets available.
The word because is perfectly acceptable at the beginning of an English sentence, and indeed there is no word in English that may not begin a sentence. A format that forbids because or any other English word from beginning an English sentence is irretrievably faulty.