Question

what is the use of articles

Answer 1

usually article is used to describe a noun 
there are two types of articles in english ,they are
(i) the - it is called definite article .it is used to refer  to specific or particular nouns
(ii) a or an -  it is called indefinite article .it is used to modify non-specific or non-particular nouns

Answer 2

articles are used to describe a noun-
there are three types of articles-
(i) the - it is called definite article .it is used to refer  to specific or particular nouns
(ii) a -  it is called indefinite article .it is used to modify non-specific or non-particular nouns.used before consonant
iii)an- it is called indefinite article .it is used to modify non-specific or non-particular nouns. used before vowel