Which of the following is an example of the micro-macro dilemma and explain why? (10)

1. Jet skis can be fun but can also be dangerous to the driver and others.
2. Children like to ride bicycles, but accidents are common.
3. Sulfites help to keep restaurant salads looking fresh, but some people have a dangerous allergic reaction to sulfites.
4. Disposable packages are convenient, but contribute to environmental problems.
5. All of these are examples of the micro-macro dilemma.