Answer:
My house is bigger than yours.
Your grade is worse than mine.
The Pacific Ocean is deeper than the Arctic Ocean.
You are more polite than Joey.
My brother is taller than I am, but he is older too.
Mr Lo is a doctor and he takes care of sick people
The correct answer is becoming an astronomy researcher
For starters, it is the only appositive phrase. It is also non-essential because the sentence conveys full meaning even if it was removed.
Answer and Explanation:
I'll provide an answer against the statement "The fast-food industry can give valuable work experience to teenagers.”
The fast-food industry is not at all concerned with the value the experience of working in it will add to someone's life. As was stated in the text, they hire teenagers "because they are less expensive to hire than adults, but also because their youthful inexperience makes them easier to control." The experience those workers will acquire from that job is limited, probably even useless in other areas. A McDonald's employee does not learn how to cook - they can't leave McDonald's to suddenly work at a regular restaurant. They have machines beeping all around them, letting them know when the food is supposed to be ready.