Question

disadvantages of electricity

Answer 1

B. Disadvantages:
High investment costsDependent on precipitationSometimes messes up wildlifeLoss of fish speciesChange in river or stream qualityCost for constructionHydroelectric power production require flooding of entire valleys and scenic areas.
Disrupts natural seasonal changes in he river, and ecosystems can be destroyed.
Ends flooding that help to clean out the silt in rivers, causing them to clog (Energy Laboratory).
The silt that usually flows down to the Beaches and Estuaries is block by the dam.
Studies show that the plant decay caused downstream of major dams produces as many greenhouse gasses as more conventional methods of producing electricity.
Dams are expensive to build, and due to drought may become useless, or produce much less power than originally planned.
A dam being built in Quebec may end up flooding a land area as large as Switzerland.
Dams can break in a massive flash floodConstruction costs of large-scale hydroelectric projects are high.
Damming rivers causes changes in ecological cycles and surrounding landscapes; self-regulating ecosystems are changed into ones that must be managed.
Sedimentation can progressively curtail a dam's ability to store water and generate energy.
There are a limited number of feasible sites for large dams.
Damming can cause loss of land suitable for agriculture and recreation.
Drought can affect power production.
Dams are vulnerable to natural forces. There is a high direct death rate from the failure of dams.
River channels downstream from dams are more susceptible to erosion.
A disadvantage of hydroelectric power stations is that it destroys wildlife and habitats of any creatures living in the area.
Dams are extremely expensive to build and must be built to a very high standard.
The high cost of dam construction means that they must operate for many decades to become profitable.

Answer 2

Disadvantages

It can kill youWe become dependent on itWe use other dirtier forms of energy (nuclear, fossil fuels) to produce itThere is growing concern that the magnetic fields around transmission lines may be unhealthy