RCs for For Daily Practice Questions for CAT with Answers PDF

This question asks you to identify the primary purpose of the passage as a whole. The best answer is D. The passage discusses two hypotheses concerning the zonation of mangrove forests. Choice A can be eliminated because the passage presents as a viable hypothesis the idea that mangrove zonation may be caused by adaptation to salinity. Choice B is incorrect because the passage is concerned with the causes of zonation patterns, not simply with a description of those patterns. Both C and E contradict the information that is presented in the passage.

This question asks you to identify information provided in the passage about early research on mangrove forests. That research is discussed in the first paragraph. Choice B is the best answer. Early research on mangrove forests is characterized as having produced descriptions of species distribution from shore to land. Such a distribution is described in the first sentence of the passage as "zonal." Choice A is not correct. Early research described mangrove distribution from shore to land. This implies a regular pattern of distribution, not a random one. Choices C and D are not correct because there is no indication in the passage that early studies of mangrove forests were concerned with the plants` chronological development or with the reclassification of species. Choice E is incorrect because the passage does not say that the research in question did anything except describing species distribution.

Here you are asked to make an inference based on information that is stated in the passage. Note that the best answer will refer to a situation where Davis`s paradigm does NOT apply. Choice E is the best answer. Davis` succession paradigm states that mangroves trap sediments over time, thus extending the shore. A shoreline where few sediments could accumulate would be unable to develop according to such a scheme. Choice A is not correct. Davis first expressed his theory of "land-building" in his study of Florida mangrove forests. Thus his paradigm presumably applies to the shoreline of those forests. Choices B and C are incorrect because the passage states that areas with weak currents and weak tidal energies are areas where land formation will progress according to Davis` paradigm. Choice D is not correct because Davis` paradigm describes the "land-building" process of mangroves, so a shoreline that had been extended by that process would fall within the paradigm.

Here you are asked to make an inference about the likely view of the author of the passage. Note that the best answer must be a statement that the author would most likely judge to be INCORRECT. Choice C is best. The author points out that while mangroves normally thrive in highly saline regions, this is not because they require salt. That assertion contradicts the claim made in this answer, so the author would likely regard the claim made in this answer as incorrect. Choice A is incorrect because it paraphrases an assertion the author makes in the first sentence of the passage. Choice B is incorrect because it paraphrases an assertion the author makes in the last sentence of the second paragraph. Choice D is incorrect because the passage does not provide sufficient information to determine whether the author would agree with this statement. Choice E is not correct. The author notes that areas with weak currents and tides are likely to be extended through the land formation. Thus the author would consider the assertion made here to be correct, not incorrect.