What is the difference between *as much as* and *as many as* ?

 As Much As :

 It is an expression which is used to show that two nouns have the same amount of something. It is used with non- count Nouns.

 For example:

1: Karachi has so much traffic.

2: Peshawar has so much traffic.

=> Peshawar has as much traffic as Karachi.

3:she has as much money as her brother has.

As Many  As:

 It is an expression which is used to show that two nouns have the same number of something. It is used with count nouns

 For example:

1: Karachi has  as many Park as Peshawar.

2: Ali has as many friends as Bilal has.

3:There is as many books as in library has.

4:Sana has as many dresses as Sara has .