What you mean by countable noun and uncountable noun ?
Dear student,
Kindly follow the link given below.
https://www.meritnation.com/cbse/class6/studymaterial/english/english-grammar/nouns/27_418_1667#slide3_singular-and-plural-nouns
Kindly follow the link given below.
https://www.meritnation.com/cbse/class6/studymaterial/english/english-grammar/nouns/27_418_1667#slide3_singular-and-plural-nouns