5.

1) How many supermarkets are there?

2) How much pollution is there?

3) How many hair salons are there?

4) How many hospitals are there?

5) How much snow is there?

6.

1) There are a lot of supermarkets.

2) There isn't much pollution.

3) There are many hair salons.

4) There are many hospitals.

5) There's much snow.