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Reading Comprehension VIP Practice Exam III
Reading Comprehension — Reading Comprehension is a foundational academic and professional skill assessed on standardized tests such as the SAT, ACT, GRE, TOEFL, IELTS, and civil service exams; no single issuing body governs it. This is an original comprehensive practice set designed to mirror the passage-based format, question types, and difficulty level used across those major assessments.
30
Questions
50m
Time Limit
75.00%
To Pass
Question 1 of 30👑 VIP
Read the following passage, then answer the question. The deep ocean remains one of Earth's least explored frontiers. Despite covering more than half the planet's surface, the seafloor below 200 meters has been mapped in less detail than the surface of Mars. Submersible technology has advanced considerably since Jacques Piccard descended to the Mariana Trench in 1960, yet the cost and logistical complexity of deep-sea expeditions mean that biological surveys are still rare. Consequently, scientists estimate that fewer than 20 percent of deep-sea species have been formally described, and new organisms — including several that challenge existing models of photosynthesis — are discovered on virtually every research cruise. Which of the following best states the central claim of this passage?
Questions 2–30 and full explanations are VIP-exclusive.