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Answer: Jurisdictional overlaps, capacity gaps at local levels, and conflicting priorities across scales
Effective environmental governance requires clarifying roles, building institutional capacity, and fostering collaboration among national, state, and local authorities.
Answer: Data quality issues, interoperability gaps, and need for analytical capacity
Effective use of big data requires addressing heterogeneity, ensuring metadata standards, building technical skills, and protecting data privacy while enabling open access for public good.
Answer: Aligning risk-return profiles of public and private investors, and ensuring additionality
Blended finance uses public/concessional funds to de-risk investments and attract private capital; success depends on clear metrics, governance, and demonstrating that public funds enable projects that wouldn't otherwise occur.
Answer: Informal waste sector integration, limited technology access, and consumer awareness gaps
Transitioning to circularity requires addressing institutional, technological, and behavioral barriers while leveraging the existing informal recycling sector's role.
Answer: Choice architecture - altering how options are presented to guide decisions
Nudges, based on behavioral insights, redesign decision contexts (e.g., default options, salient information) to encourage pro-environmental choices while preserving autonomy.
Answer: Their small size allows them to penetrate biological barriers and their environmental fate is poorly understood
Nanoparticles' unique properties raise concerns about toxicity, bioaccumulation, and long-term ecological impacts, requiring careful risk assessment and regulation.
Answer: Nagaland - Zabo
The Zabo system of Nagaland integrates water conservation, forestry, and agriculture by channeling rainwater from hilltops to terraced fields and ponds.
Answer: Both A and B
In Subhash Kumar (1991) and multiple M.C. Mehta cases, the Supreme Court interpreted Article 21 to include the right to pollution-free air and water as fundamental to life.
Answer: Vellore Citizens Welfare Forum vs Union of India
In this 1996 case, the Supreme Court explicitly recognized Sustainable Development, Precautionary Principle, and Polluter Pays Principle as part of Indian environmental law.
Answer: M.C. Mehta vs Union of India (Oleum Gas Leak Case)
In the 1987 Oleum Gas Leak case, the Supreme Court held that enterprises engaged in hazardous activities have absolute liability for any harm caused, without exceptions.
Answer: Industrial pollution levels in forest areas
The India State of Forest Report (ISFR) focuses on forest cover, tree cover, mangroves, bamboo, carbon stocks, and forest types; pollution monitoring is handled by CPCB.
Answer: Precautionary Principle and Polluter Pays Principle as part of Indian environmental law
The Court held that these international environmental principles are part of customary international law and applicable in India under Articles 21, 48A, and 51A(g).
Answer: Reduced dependence on grid extension, faster deployment, and community ownership
Mini-grids and standalone solar systems can provide reliable, affordable power to remote areas, enhancing energy access and local development.
Answer: Gene flow to wild relatives, development of resistant pests, and impacts on non-target organisms
While GM crops offer benefits, ecological concerns include biodiversity effects, resistance evolution, and socio-economic issues requiring careful assessment.
Answer: SO2 + H2O → H2SO4 and NOx + H2O → HNO3
Sulphur dioxide and nitrogen oxides from fossil fuel combustion react with atmospheric moisture to form sulfuric and nitric acids, causing acid rain.
Answer: Creating compact, walkable, mixed-use communities centered around public transport nodes
TOD reduces vehicle dependence, lowers emissions, and enhances accessibility by integrating land use and transport planning around transit stations.
Answer: Integrating principles, values, and practices of sustainable development into all aspects of education
ESD empowers learners to make informed decisions and take responsible actions for environmental integrity, economic viability, and a just society.
Answer: Tradable pollution permits (Cap-and-Trade)
Cap-and-trade sets an overall emissions limit and allows trading of permits, achieving reductions at lowest cost through market flexibility.
Answer: Continuous Ambient Air Quality Monitoring Stations (CAAQMS)
CAAQMS use automated analyzers to measure pollutants like PM2.5, PM10, NO2, SO2, CO, and O3 continuously, providing real-time data for public awareness.
Answer: Tropical wet evergreen forests
Tropical wet evergreen forests of the Western Ghats and Northeast India harbor exceptional biodiversity with numerous endemic flora and fauna.