Nouns can either be countable or uncountable. Regarding unc...
( ) They don’t have a distinction between singular and plural and cannot be counted because they cannot be easily divided. ( ) Some uncountable nouns are used only in the singular, like information or furniture. News is always plural. ( ) They can use the determiner "a" or "an", and if you want to ask about the their quantity, you ask "How many?".