Fill is there quiz questions. use "much" or "many". Then ask

1. How much milk do you drink a day?
I drink a glass of milk a day.
2. How many biscuits or cakes do you eat a week?
I eat a lot of biscuits a week.
3. How much chocolate do you eat a week?
I eat a bar of chocolate a week.
4. How many carrots do you eat a week?
I eat seven carrots a week.
5. How many apples do you eat a week?
I eat a lot of apples a week.

Many употребляется только с исчисляемыми существительными во множественном числе.
Much употребляется только с неисчисляемыми существительными.