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Q: What are the dangers of building dams in mountainous areas?
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What do people work for on mountainus areas?

I dare say this question was supposed to be "where do people work on mountainous areas?" But I'm not entirely sure. That in mind, they would work for mountain rescue, on dams across rivers (where they appear in mountainous areas) and logging (again where they appear).


What are two ways to help reduce the dangers of floods?

by building dams


How are hydropower plants installed?

Hydro power plants are usually located inside the dams that hold back the rivers.


Why is building dams a threaten to fish?

Building dams is a threat to fish because it takes away from their habitat and breeding grounds. Dams may also hinder their ability to migrate.


Who plans building dams?

Architects.


How the building of dams affects the lives of the people and the ecology in the region?

Depends on the size of the dam, and how the water is managed. Big dams will flood big areas of land, and limit the amount of water flowing downstream, which can cause drought. Dams can also stop seasonal flooding, which the wildilfe might have adapted to.


What are beavers jobs?

building houses or dams


What animal is known for building dams?

beaver


What is a building retaining wall called?

dams


What disadvantages are there when using hydroelectric dams?

Building them has considerable environmental impact - it creates a man-made lake that floods great areas. Migrating fish are stopped in their tracks.


What prevents sediment from reaching the coast?

Building dams


What do people do with water when building dams?

they route it differently