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WorksheetsClass X- Water Resources
Total questions: 20
Worksheet time: 10mins
A village in Rajasthan has underground tankas connected to sloping roofs. The first rain is allowed to wash the roofs before collecting water. This water is used in summer when other sources dry up. What is the main benefit of this practice?
Prevents soil erosion
Provides a reliable source of pure drinking water
Helps generate hydroelectric power
Increases groundwater salinity
A farmer in Punjab shifts from wheat to sugarcane cultivation after getting access to canal irrigation. Which ecological consequence is MOST likely in the long term?
Decrease in water table
Increase in soil fertility
Reduction in water salinity
Rise in biodiversity
In Shillong, most houses have rooftop rainwater harvesting systems despite being near Mawsynram, the wettest place on Earth. Which is the MOST appropriate reason?
Rainwater in Shillong is acidic
Rainfall is seasonal and storage is necessary
Groundwater is abundant
Government subsidies make it compulsory
A city with high rainfall still imports bottled drinking water because its rivers are contaminated by industrial effluents. Which cause of water scarcity does this illustrate?
Low rainfall
Unequal distribution of water
Water pollution
Seasonal variation
A community in Meghalaya uses bamboo pipes to carry water from a spring at the hilltop to their betel leaf plantations hundreds of metres away. What feature of this system ensures minimal water wastage?
Use of metal pipes
Slow drop-by-drop release near plant roots
Storage in large concrete tanks
Filtering water before use
After construction of a large dam, people in the downstream floodplain report reduced soil fertility. What is the MOST likely reason?
Waterlogging from irrigation
Loss of natural silt deposits due to sediment trapping in the reservoir
Use of chemical fertilisers
Change in cropping patterns
A drought-prone district in Gujarat starts receiving assured irrigation after completion of the Sardar Sarovar Project. Which benefit does this represent?
Flood control
Drought-proofing
Groundwater recharge
Fish breeding promotion
A housing society installs rooftop harvesting to channel excess rainwater into an abandoned dugwell. Over time, the water table in nearby borewells rises. Which process is taking place?
Water purification
Groundwater recharge
Flood prevention
Sediment filtration
In a certain region, farmers have started growing paddy in place of pulses after the introduction of multipurpose river valley projects. Which long-term ecological issue could arise?
Desertification
Soil salinisation
Loss of groundwater recharge
Decline in biodiversity
Villagers in Phalodi have a tanka 6.1 m deep, connected to rooftops via pipes. They avoid collecting the first rain. Why is the first rain avoided?
It contains harmful chemicals
It washes the roofs and pipes clean
It dilutes the stored water
It evaporates quickly
Which of the following situations will still face water scarcity despite high rainfall?
Region with low population density
Region with high rainfall but water is highly polluted
Region with high rainfall and abundant groundwater recharge
Region with low rainfall but effective water management
The Jal Jeevan Mission aims to provide rural households with:
100 litres per capita per day
70 litres per capita per day
55 litres per capita per day
40 litres per capita per day
Which of the following is NOT an objective of the Pradhan Mantri Krishi Sinchayee Yojana?
Har khet ko pani
Per drop more crop
Increase export of cash crops
Sustainable water conservation practices
The Damodar Valley Project was primarily aimed at controlling:
Drought
Soil salinity
Floods
Groundwater depletion
Which state first made rooftop rainwater harvesting compulsory for all houses?
Rajasthan
Tamil Nadu
Meghalaya
Karnataka
Which traditional rainwater harvesting structure is correctly matched with its location?
Khadin - Rajasthan
Kul - Kerala
Johad - Himachal Pradesh
Zing - Maharashtra
Bamboo drip irrigation is a traditional system of:
Tamil Nadu
Rajasthan
Meghalaya
Gujarat
Which of the following is a disadvantage of large dams mentioned in the chapter?
Increase in sediment flow
Facilitation of fish migration
Submergence of vegetation and soil
Prevention of soil erosion
The Atal Bhujal Yojana primarily focuses on:
Building large dams
Improving groundwater management through community participation
Constructing canals for irrigation
Linking rivers
Which is NOT a purpose of multi-purpose river valley projects?
Flood control
Inland navigation
Industrial water supply
Groundwater salinisation
