Science
Biosphere
Biosphere is the part of Earth where life exists and interacts with the atmosphere, hydrosphere, and lithosphere. In Class 9 Science, students explore how living organisms depend on energy from the Sun, exchange matter with their surroundings, and form interconnected ecosystems. The topic introduces biodiversity, food relationships, nutrient cycles, and the effects of human activities, helping learners understand Earth as a system shaped by the continuous movement of energy, matter, and life.
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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
- Biosphere
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