Explanation
Water is naturally present, as we know, whether in the form of glaciers or sea and underground water. The most effective use of water by harnessing its energy is to generate hydropower. Water is considered sustainable as well as providing the least solid waste during energy production compared to other resources that are used to generate energy and electricity.
The correct answer is A .
The Salal Hydroelectric Project was built on the Chenab River in the Reasi district. The capacity of the project is 690 MW. U.P, J&K, Punjab , Haryana, Delhi, H. P. Chandigarh & Rajasthan are the beneficiary states.
The correct answer is C .
It is a multipurpose dam serving irrigation, electricity generation, flood control, etc. This is a joint project of erstwhile Hyderabad state and erstwhile Madras Presidency when the construction was started; later it became a joint project of Karnataka and Andhra Pradesh after its completion in 1953.
Saptakosi High Dam is a multi-purpose project proposed to be built on Nepal's Saptakoshi River, also known as Koshi High Dam. The key objective of the project is to monitor flooding in south-east Nepal and northern Bihar, India, and to generate hydroelectricity. Nepal 's connexion to the sea port through a 165 km long navigation channel connecting the sea port of Calcutta via the Ganges River is a problem that subsequently comes with this project.
The correct answer is D .
Masonry dams are dams made out of masonry – mainly stone and brick, sometimes joined with mortar. They are either the gravity or the arch-gravity type. Nagarjuna Sagar Dam is the world's largest masonry dam built across Krishna River in Nagarjuna Sagar, Nalgonda district of Telangana. The dam was constructed between the years of 1955 and 1967.
Raja Lakhamagouda dam, also known as Hidkal dam, is a dam constructed across the Ghataprabha River in the Krishna River basin. It is situated at Hidkal village in Hukkeri Taluk of Belgaum district in Karnataka.
The Matatila Dam is a dam in district Lalitpur, Uttar Pradesh. It was built in 1958 on the Betwa River. It is an earthen dam of 35 m height.
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