Science
Hydrosphere
In this Class 9 Science topic, students explore the hydrosphere—the total water present on Earth in oceans, rivers, lakes, glaciers, groundwater, soil moisture, and the atmosphere. They learn how water changes among solid, liquid, and gaseous states through the water cycle, driven by solar energy, and how it moves matter and supports life. The topic also connects the hydrosphere with the atmosphere, geosphere, and biosphere, while introducing the importance of freshwater conservation and the effects of pollution and human activity.
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Practice questions are not available for this topic yet. We plan to add questions with clear explanations soon. You can keep practising other topics in the meantime.
- Class / subject
- 9 · Science
- Chapter
- Earth as a System: Energy, Matter, and Life
- Topic
- Hydrosphere
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