Causes and Effects — Predicted 2026

AI-Predicted Question Angles for UPSC 2026

Based on trend analysis, current affairs, and recurring themes in Causes and Effects.

Impact of Microplastics as Water Pollutants

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Microplastic pollution is a growing global concern and a highly relevant environmental issue. While not traditionally a core NEET topic, its increasing prominence in environmental science and public discourse makes it a potential candidate for future questions. Questions could focus on their sources (breakdown of larger plastics, microbeads), their non-biodegradable nature, their ability to adsorb other toxins, and their entry into the food chain, potentially leading to biomagnification of associated chemicals. This aligns with NEET's focus on contemporary environmental challenges.

Comparative Analysis of Water Quality Parameters

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NEET often tests comparative understanding. A question comparing BOD and COD, or linking BOD/COD values to the health of a water body (e.g., 'River A has BOD of 5 mg/L, River B has 100 mg/L. Which is more polluted and why?'), is highly probable. This tests not just definitions but also the practical implications of these parameters. Questions might also involve comparing the effects of different types of pollutants on dissolved oxygen or pH.

Specific Health Effects of Emerging Pollutants

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While classic heavy metal diseases are well-covered, NEET could introduce questions on the health effects of other less common but significant chemical pollutants. For example, the effects of pharmaceutical residues, endocrine-disrupting chemicals (EDCs), or specific industrial solvents. This would require students to have a broader understanding of chemical toxicology in water pollution, moving beyond the most commonly cited examples, but still within the scope of chemical and biological impacts.