Question
Hydropower is used globally as a renewable energy source. Earlier open-loop pumped systems used the natural flow of rivers to produce hydroelectricity. Modern hydroelectric plants use a closed-loop system that recycles water between reservoirs.
Which pair of statements best describes an advantage and a disadvantage of using a closed-loop pump system instead of an open-loop system?
Advantage: The closed-loop system does not alter rivers.
Disadvantage: It harms aquatic habitats in the reservoirs.
Advantage: The closed-loop system takes up less land space.
Disadvantage: It releases harmful gases into the atmosphere.
Advantage: The closed-loop system provides a more reliable water supply.
Disadvantage: It can reduce natural river flow downstream.
Advantage: The closed-loop system can be built away from rivers.
Disadvantage: It has reservoirs that are not continuously recharged naturally.
Which pair of statements best describes an advantage and a disadvantage of using a closed-loop pump system instead of an open-loop system?
Advantage: The closed-loop system does not alter rivers.
Disadvantage: It harms aquatic habitats in the reservoirs.
Advantage: The closed-loop system takes up less land space.
Disadvantage: It releases harmful gases into the atmosphere.
Advantage: The closed-loop system provides a more reliable water supply.
Disadvantage: It can reduce natural river flow downstream.
Advantage: The closed-loop system can be built away from rivers.
Disadvantage: It has reservoirs that are not continuously recharged naturally.
Answers
GPT-4o mini
The pair of statements that best describes an advantage and a disadvantage of using a closed-loop pump system instead of an open-loop system is:
**Advantage: The closed-loop system provides a more reliable water supply.
Disadvantage: It has reservoirs that are not continuously recharged naturally.**
This captures the benefit of a closed-loop system in terms of reliability and the downside concerning the need for managed water supply in the reservoirs.
**Advantage: The closed-loop system provides a more reliable water supply.
Disadvantage: It has reservoirs that are not continuously recharged naturally.**
This captures the benefit of a closed-loop system in terms of reliability and the downside concerning the need for managed water supply in the reservoirs.