Is the underlined noun countable or uncountable?

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1. The children fell asleep quickly after a busy day of fun.

2. Be careful! The water is deep.

3. The parade included fire trucks and police cars.

4. We like the large bottles of mineral water.

5. My mother uses real butter in the cakes she bakes.

6. How many politicians does it take to pass a simple law?

7. Most kids like milk, but Joey hates it.

8. Most pottery is made of clay.

9. Michael can play several different musical instruments.

10. I was feeling so stressed that I ate an entire box of cookies.