TPO44-L4 Renewable Energy Sources
Listen to part of a lecture in an environmental science class.
- What is the main purpose of the talk?
- A. To explain the mechanical functioning of barrages.
- B. To discuss some possible ecological effects of building barrages.
- C. To discuss the effects of ocean tides on coastal ecosystems.
- D. To describe ways to increase biological productivity of estuaries.
- What does the professor say about estuaries to support the claim that they are appropriate places for building barrages?
- A. Estuaries undergo significant changes in water levels.
- B. Estuaries attract a wide variety of animal species.
- C. Estuaries are deeper than other bodies of water.
- D. Most estuaries are far from residential areas.
- What is the professor’s opinion when the man expresses concern about marine life on the mud flats?
- A. She thinks the environmental impact of barrages would be worse for birds than for fish.
- B. She agrees that any damage to the mud flats would probably be irreversible.
- C. She feels that the situation is more complex than the man realizes.
- D. She does not believe that the mud flats support a wide variety of animal species.
- The professor mentions a change in the quantity of fish caught near a barrage in France. What most likely happened to the water in the estuary as a result of the construction of the barrage?
- A. The water has become clearer.
- B. The water has become saltier.
- C. The water has become polluted
- D. The water level has risen.
- What does the professor say is a criticism of the proposed barrage at the Severn River in Great Britain?
- A. It would damage nearby buildings.
- B. It would attract harmful species to the region.
- C. It would not be as large as the barrage in France.
- D. it would be too expensive to build.
- Why does the professor say this: 🎧
- A. To request that the student answer in greater detail.
- B. To introduce a new topic for discussion.
- C. To make the student’s statement more accurate.
- D. To repeat a point that she had not stated clearly.
B A C A D C