Notes
Natural resources
Content of the notes (1)
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why conservation
1. to maintain ecological balance
2.to preserve different kinds of species 3. to make resources available for present and future generations 4. to ensure survival of biodiversity
Soil
soil is a renewable resource as well as a non renewable resource. It is renewable because its productivity can be maintained with fertilizers and manures rich in humus . It is non renewable as formation of soil takes hundreds of years.
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- 9th state syllabus karnataka
- Created by
- Rutu Kiran · Mar 2015
- Updated
- Feb 27, 2016
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