Let’s answer the questions.
Q1 main topic question.
The answer is in the first paragraph when the professor says “today we will..” Let’s evaluate each choice.
A: He did mention this in the first para, but it is not the main topic for the lecture. He said that today he will talk about how asteroids were formed and why they are in the location of the asteroid belt.
B: is what we are looking fr.
C is the main topic of the fourth paragraph.
D: Two theories are mentioned, the planet explosion theory and nebular hypothesis, but they are not competing theories since the author believes that the nebular theory is far better than the old theory.
so the answer is B.
Q2
the answer is in the third paragraph. They are pulled by nearby matter.
A is what we are looking for.
B is BS
C is not it, nor is D. So the answer is A.
Q3
Trojan asteroids are mentored in the fifth para. large cluster, follow Jupiter’s orbit.
A, B and C are all false. D is Right. They are located in Jupiter’s orbit.
Q4.the answer is in the fourth para. if close to the sun, the matter is absorbed by the planets or the sun. So B is the answer
Q5:
The answer is in the 2nd para. too small a quantity and some asteroids are found in areas other than the asteroid belt.
B and C are the answers
Q6.
“But” is the clue. Before the But, the professor talks about the powerful gravitational force of the sun. Since he used a contrasting word ‘but’ when he introduced Jupiter, we can infer that Jupiter also has a powerful gravitational pull.
A is not it.
B is not true.
so C.D is what we are looking for. That is, Jupiter is almost as awesome as the sun.