For questions about nouns that are viewed as a "mass" or "whole" that cannot be counted or separated. These nouns usually aren't used in the plural, with the indefinite article ("a" or "an"), or with numbers.
For questions about nouns that are viewed as a "mass" or "whole" that cannot be counted or separated. These nouns usually aren't used in the plural, with the indefinite article ("a" or "an"), or with numbers.