6. Biosphere – Life on the Earth
The biosphere is a crucial layer of the Earth that encompasses all environments capable of supporting life, including the lithosphere, hydrosphere, and atmosphere. It contains diverse ecosystems and biomes that interact dynamically, sustaining biodiversity and ecological balance. Human activities, such as deforestation, pollution, and climate change, pose significant threats to the biosphere, necessitating concerted conservation and sustainable development efforts.
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Sections
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What we have learnt
- The biosphere includes the lithosphere, hydrosphere, and atmosphere, where life exists.
- Biodiversity is vital for ecosystem stability and health.
- Human activities significantly affect the biosphere, leading to conservation challenges.
Key Concepts
- -- Biosphere
- Layer of Earth encompassing all ecosystems that support life.
- -- Ecosystem
- A community of living organisms interacting with their physical environment.
- -- Biodiversity
- The variety of life forms in a given ecosystem, contributing to stability and resilience.
- -- Sustainable Development
- Using resources in a way that does not compromise the needs of future generations.
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