5. The Realms of Water
Water bodies such as oceans, rivers, lakes, glaciers, and groundwater are critical to maintaining life and ecological balance on Earth. The hydrological cycle governs the movement of water through these realms, impacting weather, ecosystems, and human existence. Due to climate change, pollution, and over-extraction of resources, there is an urgent need for sustainable water management practices to preserve these essential resources for future generations.
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What we have learnt
- Water bodies constitute essential components of the hydrological cycle.
- Oceans cover a majority of the Earth's surface and regulate climate.
- Rivers and lakes play a vital role in supporting ecosystems and human activities.
Key Concepts
- -- Hydrological Cycle
- The continuous movement of water within the Earth and atmosphere through processes such as evaporation, condensation, and precipitation.
- -- Aquifer
- A geological formation that can store and transmit groundwater, providing a vital resource for drinking and irrigation.
- -- Erosion and Deposition
- Processes by which rivers shape landscapes by transporting sediment and depositing it to form features like deltas.
- -- Water Conservation
- Strategies to reduce water use and preserve water resources, crucial in preventing water scarcity.
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