I believe PROS:
· Dams can store rain water or water directly from the river itself. Then, in case of a Drought, the dam will still have a relatively constant supply of water.
· Producing Power.
·
o Controls flooding & PROS:
o Dams can store rain water or water directly from the river itself. Then, in case of a Drought, the dam will still have a relatively constant supply of water.
o Producing Power.
o Controls flooding & provides recreational activities such as boating fishing and swimming, if the lake is not being used for drinking water (Dam Society).
o Simple design makes for inexpensive repairs and maintenance costs (Dam Society).
o Produce inexpensive (after completion) and clean power.
o Renewable energy source, because the water is not destroyed by passing through the dam.
o If needed, dams can be shut down instantly, where thermal plants take hours, and nuclear plants can take days! (Dam Society).
o Very few breakdowns.
o provides recreational activities such as boating fishing and swimming, if the lake is not being used for drinking water (Dam Society).
· Simple design makes for inexpensive repairs and maintenance costs (Dam Society).
· Produce inexpensive (after completion) and clean power.
· Renewable energy source, because the water is not destroyed by passing through the dam.
· If needed, dams can be shut down instantly, where thermal plants take hours, and nuclear plants can take days! (Dam Society).
· Very few breakdowns.
CONS:
· Hydroelectric 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 build in Quebec will end up flooding an area as large as Switzerland (Energy Laboratory).
· Dams can break in a massive flash flood.
· Dams can store
rain water or water directly from the river itself. Then, in case of a Drought, the dam will still have a relatively constant supply of water.
· Producing Power.
Controls flooding & pro
biodiversity is affected
environmental problems
housing problems may arise
deforestation
It can eradicate the flood but it can bring earthquake,drought etc.
Dams eliminate forests hat absorb CO2 from the atmosphere- dams block the migration of fish, which make species go extinct, - Many people get displaced by building dams- Hydro power ruins beautiful landscapes- Constructing dams costs massive amounts of money- Dams are not a very nice sight, which might reduce amount of tourists- dams form lakes which flood people, animals,etc.-
The disadvantages are:
it cost alot and could lead into debt, it could flood, destroy wildlife and things around it and 10,000 had to be moved.
The advantages are:
Brings in fish which they can eat, provides water and brings in tourist.
Advantages of dams:
Most dams are built to make a hydroelectric plant or to control the amount of water in a body of water, or both. So it could control water and/or generate electricity. Dams can keep water from flooding into towns, if the dam was built to get more land. Dams can also provide fresh water, too.
But there also disadvantages. A dam is cutting away water supply from the animals that used to live by the water, and could help contribute to extinction.
Advantages of dams:
they prevent floodingthey create a walk waythey create hyrdroelectric power
Que los dams son perfectos , pero vos OS sun pelotudo fracasado en la vida q venis a estos foro de wikiporonga a preguntar pelotudo.
Advantages of dams:1. Dams are constructed based only on safety2. It is used to store water3. It used in hydroelectric power generation4. It is used in irrigation purposes.Disadvantages of dams:1. Requires skilled labour to construct2. Strong abutments is needed.
Advantage of a gravity dam is that every section will be stable and reliable. An Earth dam can overflow and collapse because of erosion.
humans can interact from the environment by building dams to collect large amount of water
humans can interact from the environment by building dams to collect large amount of water
humans can interact from the environment by building dams to collect large amount of water
humans can interact from the environment by building dams to collect large amount of water
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.
Building them has considerable environmental impact - it creates a man-made lake that floods great areas. Migrating fish are stopped in their tracks.
Bases of buildings and dams are spread over a large area. Hence, the pressure exerted by the building on the earth's surface is less. thus reducing the risk of sinking.
Architects.
Norman Davey has written: 'Correlation between laboratory tests and observed temperatures in large dams' -- subject(s): Cement, Concrete, Concrete dams, Testing 'Building in Britain'
The availability of suitable sites for large dams and reservoirs, and in some areas the amount of rainfall