What is a disadvantage of large-scale hydropower?
A) There is a low net energy yield.
B) There are high CH4 emissions from rapid biomass decay in shallow tropical reservoirs.
C) Most of the potential energy has already been tapped.
D) The generated electricity comes at a relatively high cost.
E) There are high emissions of CO2 and other air pollutants in temperate areas.

Question

​What is a disadvantage of large-scale hydropower?
A) ​There is a low net energy yield.
B) ​There are high CH4 emissions from rapid biomass decay in shallow tropical reservoirs.
C) ​Most of the potential energy has already been tapped.
D) ​The generated electricity comes at a relatively high cost.
E) ​There are high emissions of CO2 and other air pollutants in temperate areas.

Quizplus · Accepted Answer

Large-scale hydropower can result in high CH4 emissions from the rapid decay of biomass in shallow tropical reservoirs, which can contribute to climate change. This is a major disadvantage of this form of energy generation.

​What Is a Disadvantage of Large-Scale Hydropower

What Is a Disadvantage of Large-Scale Hydropower