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Welcome to eGyanKosh’s dedicated page for Unit-4: Potential Environmental Stresses, designed specifically for IGNOU students in 2025. This comprehensive study material is crafted to aid your understanding of the various environmental stresses that impact ecosystems and human societies. Here, you will find an array of resources, including detailed notes, engaging multimedia content, and insightful references, all available for free download. Whether you’re looking to revise key concepts or deepen your knowledge, this study material is an invaluable tool to help you excel in your academic journey. Join us as we explore the critical issues surrounding environmental challenges through this carefully curated content!