Reading Comprehension: Inference Questions
What can be inferred about Earth from the first hypothesis mentioned in the passage?
Since this theory is weakened by the Moon's lack of iron, we can infer that Earth's core has a large amount of iron in it.
Although the passage casts doubts on the theory that the Earth and Moon were created simultaneously, the first hypothesis does not tell us which one was created before the other.
This answer choice agrees with the second hypothesis mentioned in the passage, while the question asks about the first hypothesis.
The passage tells us that the high angular momentum of this system makes it unlikely that Earth was created simultaneously with the Moon. Nothing can be implied from this fact about the age of the Earth.
Although the passage casts doubt on the first hypothesis of the Moon's creation, it does not cast doubt on any information about the Earth's creation. Even though this hypothesis is unlikely, we still know that the Earth was created from the primordial accretion disc.