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Audio Notes: जलीय पारिस्थितिकी तंत्र Video Lecture | UPSC Audio Notes in Hindi
FAQs on Audio Notes: जलीय पारिस्थितिकी तंत्र Video Lecture - UPSC Audio Notes in Hindi
| 1. What are the main components of an aquatic ecosystem? |  |
Ans. An aquatic ecosystem primarily consists of biotic and abiotic components. The biotic components include various organisms such as fish, aquatic plants, algae, invertebrates, and microorganisms. The abiotic components encompass physical and chemical factors like water temperature, salinity, pH levels, light penetration, and nutrients. These components interact in complex ways, supporting a diverse range of life forms.
| 2. How do human activities impact aquatic ecosystems? | |
Ans. Human activities significantly affect aquatic ecosystems through pollution, habitat destruction, overfishing, and climate change. Pollutants such as plastics, heavy metals, and agricultural runoff can degrade water quality, harming aquatic life. Habitat destruction from urban development and industrial activities leads to loss of biodiversity. Overfishing disrupts food chains, while climate change alters temperature and water levels, affecting species distribution and ecosystem health.
| 3. What role do aquatic plants play in aquatic ecosystems? | |
Ans. Aquatic plants, such as macrophytes and phytoplankton, play crucial roles in aquatic ecosystems. They produce oxygen through photosynthesis, serve as a food source for various organisms, and provide habitat for aquatic animals. Additionally, aquatic plants help stabilize sediments, reduce water turbidity, and absorb excess nutrients, thereby maintaining water quality and supporting overall ecosystem health.
| 4. What are the different types of aquatic ecosystems? | |
Ans. Aquatic ecosystems can be broadly categorized into two main types: freshwater ecosystems and marine ecosystems. Freshwater ecosystems include rivers, lakes, ponds, and wetlands, characterized by low salinity. Marine ecosystems encompass oceans, coral reefs, and estuaries, which have higher salinity levels. Each type supports distinct communities of organisms adapted to their specific environments and conditions.
| 5. Why is biodiversity important in aquatic ecosystems? | |
Ans. Biodiversity is vital in aquatic ecosystems as it enhances resilience and stability. A diverse range of species contributes to ecosystem functionality, such as nutrient cycling, energy flow, and habitat provision. High biodiversity also allows ecosystems to withstand environmental changes and stresses better. Additionally, diverse aquatic systems offer numerous benefits to humans, including fisheries, recreation, and water purification.
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Oct 12, 2025
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