Per capita storage capacity of water in India according to 2021... | Agrigyan

• Projected Per Capita Water Availability in India by 2050:
• Historical Trend & Projections (CWC & NCIWRD):
• 1951: $5177\text{ m}^3/\text{capita/year}$
• 2001: $1816\text{ m}^3/\text{capita/year}$
• 2011: $1545\text{ m}^3/\text{capita/year}$ (water stressed)
• 2021: $1486\text{ m}^3/\text{capita/year}$
• 2050 Projection: Rapid population growth and urbanization will reduce availability down to approximately $1140\text{ m}^3/\text{capita/year}$, dangerously close to the international absolute water scarcity threshold of $1000\text{ m}^3$.
• Conclusion: 1140 cubic meters (Option 4).

Correct option: (4) 1140 cubic meters

Evaluating the Assertion and Reason concerning Critical stages of crop growth in relation to irrigation:

The correct answer is Option 1: Both (A) and (R) are true and (R) is the correct explanation of (A).

• Conjunctive Use of Water Resources:
• Definition: The coordinated, simultaneous, and planned combined management and utilization of surface water (canals, reservoirs, tanks) and groundwater (tubewells, open wells) within an irrigation command area.
• Key Benefits:
• Prevents waterlogging and salinization caused by excess canal recharge.
• Mitigates groundwater overdraft and aquifer depletion during dry spells.
• Optimizes crop water availability and maximizes agricultural water productivity.
• Conclusion: Conjunctive Use (Option 3).

Correct option: (3) Conjunctive Use