Answer:
C. The solar system formed from space dust, after all.
Explanation:
The topic sentence is:
- Space exploration is not a waste of money.
We'd expect this passage to follow up on why investing in space exploration <em>is</em> a good use of money.
Here are the sentences that follow:
- Rocket companies and astronaut training programs give high-paying jobs to skilled professionals.
- The technologies they create helps people on earth daily.
This tells us that skilled space professionists are well-paid because the technologies they create help us daily. This is related to how space exploration is worth investing in.
- The solar system formed from space dust, after all.
This sentence has no relation whatsoever to our topic. It does not relate back to the topic sentence.
Explanation:
He will be working hard to pass the exam
B because the point of research is to discover things that help you answer a question.
