[Sentence Correction]

Twenty-two feet long and 10 feet in diameter, the AM-1 is one of the many new satellites that is a part of 15 years effort of subjecting the interactions of Earth's atmosphere, oceans, and land surfaces to detailed scrutiny from space.

[Sentence Correction]

Twenty-two feet long and 10 feet in diameter, the AM-1 is one of the many new satellites that is a part of 15 years effort of subjecting the interactions of Earth's atmosphere, oceans, and land surfaces to detailed scrutiny from space.

[Critical Reasoning]

Which of the following, if true, would most seriously weaken the conclusion drawn in the passage?

[Critical Reasoning]

Which of the following is an assumption on which the argument depends?

[Reading Comprehension]

Which of the following is most clearly an example of the practice referred to in the highlighted text of the passage?

[Reading Comprehension]

Which of the following is most clearly an example of the practice referred to in the highlighted text of the passage?

[Reading Comprehension]

It can be inferred from the last paragraph of the passage that which of the following must be true of the Earth as it orbits the Sun?

[Reading Comprehension]

The primary purpose of the passage is to

[Reading Comprehension]

The primary purpose of the passage is to

[Reading Comprehension]

The primary purpose of the passage is to