What are advantages and disadvantages of "Dam"
Answers
Answer:
1}These are the main source of power generation. 2}These projects control the floods because water can be stored in them. These projects have converted many, 'rivers of sorrows' into 'rivers of boon'. 3}Thes projects are the main source of irrigation and also help in conserving soil.
Explanation:
List of the Advantages of Dams
1. Dams provide us with a source of clean energy.
Hydroelectricity is responsible for 19% of the world’s energy supply, offering over 3000 terawatts each year. We can produce power from dams because of the kinetic energy of the water movements as it causes turbines to spin.
2. Dams help us to retain our water supply.
When we take an opportunity to dam a river, then the water will pool to form a reservoir behind the structure. This outcome allows the population centers in that region to collect fresh water during periods of heavy precipitation for use during a dry spell or drought.
3. This technology provides us with critical recreational opportunities.
Dams can provide us with a wide range of economic, environmental, and social benefits. Numerous reservoirs around the United States offer opportunities to go camping, boating, and waterskiing.
4. A well-constructed dam provides several flood-control benefits.
Dams help to prevent property loss while reducing the risk to human life from annual flooding events. These structures can impound the floodwaters into the reservoir behind the dam, allowing us to release them under control or to store it for future use.
5. Dams give us a way to irrigate croplands that may not receive enough moisture.
About 10% of the croplands in the United States are currently irrigated using water that is stored in reservoirs behind a dam. Tens of thousands of jobs are directly tied to crop production and other agricultural activities that happen because of this benefit. .
List of the Disadvantages of Dams
1. Dams can displace a significant number of people.
An estimated 500 million people have been displaced by dams in the last two centuries because of the reservoirs that form behind each structure. As the surrounding dry areas get flooded, we no longer have the option to use land that was previously accessible for a variety of purposes.
2. Reservoirs behind a dam can lead to higher greenhouse gas emissions.
When vegetation gets engulfed in water, then the plants will eventually die.
3. This technology disrupts local ecosystems.
Dams create a flooding issue behind the structure as a way to form a reservoir. Not only does this disrupt human activities, but it also destroys the existing wildlife habitats that exist.
4. Some river sediment is beneficial.
Dams can have a profound impact on the overall aquatic ecosystem of a region. The transformation upstream creates a lack of settlement that moves down the waterway to support the entire marine habitat.
5. Dams create a flooding risk if they experience a failure.
We might use dams to provide us with a form of flood control, but the failure of this structure can have devastating consequences for downstream communities. The Vajont Dam Failed in 1963, only 4 years after its construction was finalized just outside of Venice, Italy.