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1. Which factor worsens floods despite dam construction?
A. Silt deposition in reservoirs
B. Reduced rainfall
C. Increased evaporation
D. Groundwater recharge
2. What is a spillway in a dam?
A. Powerhouse
B. Gate for boats
C. Structure to release excess water
D. Underground channel
3. Which type of dam uses natural materials like earth or rock?
A. Timber dam
B. Masonry dam
C. Embankment dam
D. Concrete dam
4. Which dispute involves diversion of Koyna river water?
A. Cauvery dispute
B. Krishna-Godavari dispute
C. Yamuna water dispute
D. Ravi-Beas dispute
5. Which term refers to the underground storage of rooftop rainwater in Rajasthan?
A. Khadin
B. Kul
C. Johad
D. Tanka
6. Which village in Karnataka is famous for successful rainwater harvesting?
A. Gendathur
B. Bidar
C. Hampi
D. Kolar
7. How many households in Gendathur have installed rooftop harvesting systems?
A. 100
B. 150
C. 200
D. 250
8. Which rainfall spell is avoided in tanka collection to clean roofs and pipes?
A. First spell
B. Second spell
C. Third spell
D. Last spell
9. What percentage of household water needs in Shillong comes from rooftop harvesting?
A. 5–10%
B. 10–15%
C. 15–25%
D. 30–40%
10. Which area uses inundation channels for irrigation during floods?
A. Punjab
B. Bengal flood plains
C. Gujarat
D. Kerala
11. Which traditional method of rainwater storage is found in Barmer?
A. Khadins
B. Tankas
C. Kuls
D. Johads
12. What is the main advantage of rainwater harvesting?
A. Increases evaporation
B. Prevents groundwater recharge
C. Reduces water scarcity and saves ecosystems
D. Encourages river pollution
13. Which government programme aims to supply 55 litres per capita per day of drinking water?
A. Namami Gange
B. Jal Jeevan Mission
C. Atal Bhujal Yojana
D. Swachh Bharat Mission
14. What is the most common practice of rooftop harvesting in India?
A. Concrete tanks only
B. PVC pipes with underground storage
C. Open ponds
D. Bamboo pipes
15. Which river has become toxic due to population growth and industrialisation?
A. Ganga and Yamuna
B. Krishna and Godavari
C. Narmada and Tapi
D. Mahanadi and Damodar
16. Which disease can spread due to excessive use of water in dam projects?
A. Malaria and water-borne diseases
B. Diabetes
C. Asthma
D. Cancer
17. What is the main drawback of big dams in agriculture?
A. Increase in natural fertiliser
B. Reduction of silt on flood plains
C. Creation of saline lakes
D. Boost in biodiversity
18. Which movement opposed the Tehri Dam?
A. Narmada Bachao Andolan
B. Tehri Dam Andolan
C. Chipko Movement
D. Appiko Movement
19. What is the local name for harvested rainwater in Rajasthan homes?
A. Khadin Pani
B. Palar Pani
C. Johad Jal
D. Kul Pani
20. Why is rainwater harvesting declining in western Rajasthan?
A. Low rainfall
B. Indira Gandhi Canal supply
C. Absence of tankas
D. Population decline
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