Answer:
antagonist's actions oppose the protagonist while the foil's character is in opposing to the protagonist.
The last statement proves that a physical health risk is present to those who smoke so it is correct.
Answer:
In these days we can kindle a fire without any trouble, because we can easily get a match
Explanation:
Only use colons after statements that are complete sentences. Don't use it after a sentence fragment. It may be used between independent clauses when the second sentence explains the first sentence.
Ex: He has three favorite movie genres: action, comedy, and drama.