Explanation:
The final phrase outlines two plausible scenarios that could explain the rise in intelligent phone popularity. These two hypotheses are educated assumptions as to what is causing the pattern. The author is just offering explanations as a choice (Present two possible reasons for the growing popularity of smart phones) implies since the author injects minimal bias and leaves the solution to the reader's perception. The other options are irrelevant or have inadequate text evidence to support them.
Explanation:
Because he wanted the battle to begin, but she didn't want to give the impression that he was supporting it.
Explanation:
"Frivolous" indicates useless or needless based on the context of petty applications and information. So, if the author believes that people who are not in business use smartphones unnecessarily, the author would think that these people do not require smartphones because the author makes no indication of their clear expectations for how the technology will develop in the future. Because of the author's matter-of-fact tone, you can rule out "fascination," There is no evidence that the author owns a smartphone.
Explanation:
The first sentence mentions that various solutions for solving a Rubik's cube exist. The second sentence explains one in greater detail. Therefore, the second sentence expands on the information in the first.
Explanation:
The first sentence identifies a problem: persisting high rates of teen pregnancy in spite of advancements in contraceptive technology. The second sentence offers a possible explanation: young people aren't being informed about how they can access contraceptives.
Explanation:
The first sentence mentions that cardiovascular health is a benefit of aerobic exercise. The second sentence mentions low resting heart rates and fewer cardiovascular problems, which are signs of good cardiovascular health. Therefore, the second sentence expands on the information in the first.
Explanation:
The first sentence states that elephants are capable of human-like behaviors. The second sentence states that elephants bury their dead and visit graves, which provides examples of human-like behaviors.
Explanation:
The first sentence states that the only purpose of zoos is to allow greedy people to profit. The second sentence challenges the first, however, pointing out that a key purpose of zoos is to protect endangered animals.
Explanation:
The passage states that "Obviously, this was bad news for music artists and record labels because they weren't making any profits from downloaded music." Therefore, this answer is the correct choice. None of the other choices are identified as problems associated with file-sharing sites.