ECONOMICS
TECHNOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
power
|
|
|
piped water supplies
|
|
|
air
|
|
|
sanitation and sewerage
|
|
|
dam
|
Detailed explanation-1: -The two main types are earthfill dams and rockfill dams. Earthfill dams are made up mostly from compacted earth, while rockfill dams are made up mainly from dumped and compacted rockfill. The materials are usually excavated or quarried from nearby sites, preferably within the reservoir basin.
Detailed explanation-2: -Dams (often called dykes or levees in this context) are used to prevent ingress of water to an area that would otherwise be submerged, allowing its reclamation for human use. Water diversion. A typically small dam used to divert water for irrigation, power generation, or other uses, with usually no other function.
Detailed explanation-3: -The Three Gorges Dam is the world’s largest power station in terms of installed capacity (22, 500 MW). In 2014, the dam generated 98.8 terawatt-hours (TWh) and had the world record, but was surpassed by the Itaipú Dam, which set the new world record in 2016, producing 103.1 TWh.