This choice is discussed, but it falls under the more general purpose of the passage, which is discussing why the Amazon Rainforest is a valuable area that should be protected.
There is no indication that Gardner ranked the intelligences in any way. There is no mention of the value placed on intrapersonal intelligences in a traditional academic environment. IQ tests are not mentioned at all, so we can not conclude anything about them based on this passage. This answer is the correct choice. Those with interpersonal intelligence interact well with others, so it is reasonable to assume they would perform well in a group setting.
This choice is the best answer. Two of the other choices are touched upon only very briefly. The other answer is discussed, but it is encompassed by the broader purpose of the passage, which is to outline the most important considerations related to passwords.
This choice is the most logical conclusion. The passage states that, "Primary sources are the more direct type of information. They are accounts of an event that are produced by individuals who were actually present." Therefore, it is reasonable to assume that an account prepared by someone who was present would be more accurate than one prepared by somebody decades later who had to rely on the accounts of others.
Two of the choices are mentioned only briefly, and one is not really discussed in the passage. The passage focuses mainly on discussing some of the major benefits of sleep, so that is the main purpose of the passage.
This answer is the logical conclusion. The passage states that "The king controlled all of the land in his jurisdiction. He divided this among a few barons. The barons then divided up the land they were given and distributed it to knights." If the barons divided up their lands, it would stand to reason that each baron would distribute his land to several knights. Therefore, there would have to be more knights than barons.
Wild birds are not discussed at length. The passage focuses on lack of preening and excessive preening, which are both examples of abnormal preening behavior. The main purpose of the passage is to discuss abnormal preening in birds.
The passage states that "Animals that are herbivores will find the winters extremely tough, because all of the vegetation will have died off by the time winter arrives. Hibernation is essentially a way of dealing with this food shortage." Therefore, this is the correct answer.
The other three answer choices are all mentioned in the passage, but they are part of the overall purpose, which is to give an overview of how leeches have been used throughout history.