What best explains the environmental consequences associated with generating hydroelectric power?

Which environmental consequence is most often associated with obtaining energy from fossil fuels?

All energy sources have some impact on our environment. Fossil fuels—coal, oil, and natural gas—do substantially more harm than renewable energy sources by most measures, including air and water pollution, damage to public health, wildlife and habitat loss, water use, land use, and global warming emissions.

Which is most likely the greatest impact on the environment when a dam is built for hydroelectric power production?

Q. Which is most likely the greatest impact on the environment when a dam is built for hydroelectric power production? The dam destroys habitats by creating reservoirs of water that flood lands upstream of the dam.

Which best explains why more hydroelectric dams are not built?

A hydroelectric dam produces renewable energy for the local are. Which best explains why more hydroelectric dams are not built? … It is a renewable resource.

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Which of the following is an example of how the production of hydroelectric power could potentially harm the environment?

The generators make a loud noise that disrupts the migration patterns of birds. Which of the following is an example of how the production of hydroelectric power could potentially harm the environment? The dam causes silt and sediment buildup. The radioactive waste is a threat to wildlife.

Which is the most negative environmental consequence of building dams for hydroelectric power?

Flooding land for a hydroelectric reservoir has an extreme environmental impact: it destroys forest, wildlife habitat, agricultural land, and scenic lands. In many instances, such as the Three Gorges Dam in China, entire communities have also had to be relocated to make way for reservoirs [3].

How does generating electricity affect the environment?

Environmental Impacts of the Electricity System. … In general, the environmental effects can include: Emissions of greenhouse gases and other air pollutants, especially when a fuel is burned. Use of water resources to produce steam, provide cooling, and serve other functions.

How does hydroelectric affect the environment?

Hydropower does not pollute the water or the air. However, hydropower facilities can have large environmental impacts by changing the environment and affecting land use, homes, and natural habitats in the dam area. … Operating a hydroelectric power plant may also change the water temperature and the river’s flow.

Which of the following are factors in generating hydropower?

The amount of electricity a hydropower plant produces depends on two factors:

  • How Far the Water Falls. The farther the water falls, the more power it has. Generally, the distance that the water falls depends on the size of the dam. …
  • Amount of Water Falling. More water falling through the turbine will produce more power.
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What are the social impacts of hydroelectric power?

The results of our social literature review discuss the major positive and negative social impacts of hydroelectric development. Social benefits are primarily economic growth and improved flood control, while negative social impacts are displacement, adverse effects to human health, and livelihood changes.

Why is there no hydroelectric power?

Hydropower can also cause environmental and social problems. Reservoirs drastically change the landscape and rivers they are built on. Dams and reservoirs can reduce river flows, raise water temperature, degrade water quality and cause sediment to build up. This has negative impacts on fish, birds and other wildlife.