Diversify is a verb meaning to use or produce a variety or invest in different types of financial products. If you diversify your investments, when one type goes down, the rest of your investments...
You use "in" when you mean "in" and you use "or" when you need to use "or". It is rather difficult to construct rules for the use of prepositions in most languages.The grammatical structure of the...
Has and have are two forms of the infinitive to have Has is used for he, she and it, and generally speaking third person singular. (eg Richard has a lot of friends) Have is used for all other case...