3. Changes Caused by Over Grazing
The chapter discusses various environmental challenges and energy resources, highlighting the impact of human activities on land degradation, desertification, and the need for sustainable practices. It categorizes energy resources into non-renewable and renewable, elaborating on their advantages and disadvantages. The chapter emphasizes the importance of conserving natural resources and suggests practical steps individuals can take to contribute to sustainability.
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What we have learnt
- Overgrazing leads to decreased soil productivity and biodiversity, contributing to desertification.
- Energy plays a crucial role in economic growth, with both renewable and non-renewable sources impacting the environment.
- Conservation practices, such as crop rotation and contour farming, are essential to combat land degradation.
Key Concepts
- -- Overgrazing
- The excessive grazing of vegetation resulting in reduced land productivity and increased soil erosion.
- -- Desertification
- The process by which fertile land becomes desert as a result of various factors, including drought and inappropriate agriculture.
- -- Renewable energy
- Energy from sources that are naturally replenished, such as solar, wind, and geothermal energy.
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