2016 · Paper V · 5 marksFrequently asked

Give a brief note on the following: (i) Sustainable agriculture (ii) Acid Rain

In short

Sustainable agriculture is climate-resilient farming that conserves soil and water, promoted by the National Mission for Sustainable Agriculture and Soil Health Cards. Acid rain forms when sulphur dioxide and nitrogen oxides from industry and vehicles mix with rain, lowering soil pH and damaging crops, aquatic life and the Taj Mahal.

Model answer

Ghissu Editorial · Verified 4 Oct 2026

Introduction
Sustainable agriculture and acid rain critically impact India’s environment and agriculture, requiring integrated policy responses.
Institutional Frameworks Supporting Sustainable Agriculture and Pollution Control
•

National Mission for Sustainable Agriculture321

Implements climate-resilient practices through Rainfed Area Development and Per Drop More Crop, benefiting farmers in Andhra Pradesh and drought-prone areas.

•

Soil Health Card Scheme

Over 25 crore cards issued, enabling balanced fertiliser use to reduce soil degradation and pollution.

•

Pollution Control Regulations

BS-VI standards and real-time air quality monitoring address emissions of nitrogen oxides and sulfur dioxide, key acid rain precursors.

•

State-Level Integration

Andhra Pradesh combines national schemes with local extension services to promote sustainable farming and monitor acid rain impacts.

Challenges in Implementation and Environmental Outcomes
•

Adoption Barriers

Excessive fertiliser and pesticide use persists, especially in drought-prone Rayalaseema, undermining sustainability goals.

•

Acid Rain Impact

Lowers soil pH, harms crops, aquatic ecosystems, and monuments like the Taj Mahal, and causes heavy metal leaching into water.

•

Enforcement Gaps

Weak emission standard enforcement and low public awareness limit acid rain mitigation, especially in northern industrial belts.

•

Climate Change Effects

Altered rainfall and temperature extremes exacerbate challenges, highlighting the need for climate-resilient agroforestry practices4 such as those in drought-prone Karur.

Conclusion
Enhancing climate-resilient agriculture under the National Mission for Sustainable Agriculture and enforcing pollution controls are vital for India’s ecological and agricultural sustainability, supporting SDG 13 and SDG 15.

This model answer is indicative and the model can make mistakes; please verify key facts independently.

Hand-drawn diagram: Acid rain and its damage. Acid rain and its damage. Flow: SO2 and NOx emitted → Acid rain forms → Soil pH falls, metals leach → Crops, aquatic life, monuments harmed
Diagram: Acid rain and its damage

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