Question 31: What is the OPPOSITE meaning of "significant" in the context?
The word "significant" refers to something that is important or considerable in impact. The opposite of "significant" would be something that is "minor" or less important.
Answer: A. minor
Question 32: What does the passage mainly discuss?
The passage describes various causes of water pollution, specifically sewage, waste from cruise ships, and oil spills, and their negative effects on water quality and human health. Therefore, the passage mainly discusses "Various causes and consequences of water pollution."
Answer: A. Various causes and consequences of water pollution
Question 33: According to the passage, oil spills.
The passage mentions that oil spills can happen in many different ways, some small and accidental (like during refueling a ship) and others large (due to pipeline breaks or sinking oil tankers). It also notes that oil spills can cause damage to the environment, particularly in sensitive areas.
Answer: B. are caused by oil tanker accidents
(Note: This answer is partially supported, but it is one of several causes, as the passage mentions other causes such as accidental small spills during refueling.)
Question 34: Why is sewage pollution a global problem?
The passage clearly states that sewage is dumped into the seas without proper treatment in high, middle, and low-income countries, indicating that sewage pollution is a global problem because it reduces water quality everywhere.
Answer: B. It reduces water quality everywhere.
Question 35: What do many cruise ships rely on for waste treatment?
The passage specifies that 40 percent of cruise ships depend on 30-year-old waste treatment technology, which is outdated.
Answer: C. 30-year-old technology
Question 36: What is the CLOSEST meaning of "pollutants" as used in the text?
The term "pollutants" refers to substances that contaminate or damage the environment. The closest meaning to "pollutants" in this context would be "contaminants".
Answer: B. contaminants