Sustainable Management of Natural Resources — Science Class 10 Notes (CBSE & HBSE)
Free NCERT Science notes for Sustainable Management of Natural Resources (Class 10) on Siksha Sarovar, aligned to CBSE and Haryana Board (HBSE). This chapter is broken into 4 topics with clear explanations, formulas, solved examples and board-pattern practice — free to read, no sign-up required.
Board exam focus — Sustainable Management of Natural Resources (CBSE & HBSE)
Focuses on the conservation and judicious use of earth's resources. CBSE emphasizes the 5 R's and community participation; HBSE focuses on water harvesting and coal/petroleum.
The 5 R's and Resource Management
Natural resources are things provided by nature for our use. Sustainable management means using them without compromising the needs of future generations.
The 5 R's to Save the Environment:
- Refuse: Say no to things you don't need (e.g., single-use plastics).
- Reduce: Use less (e.g., save electricity/water).
- Reuse: Use things again and again (e.g., plastic bottles as containers).
- Repurpose: Use a product for another purpose (e.g., cracked mug as a pen holder).
- Recycle: Collect waste and process it into new products (requires energy).
Forests and Wildlife
Forests are 'biodiversity hot spots'. Protecting them is crucial to maintain ecological stability.
Stakeholders of Forests:
- Local People: Depend on forest products for fuel, fodder, and housing.
- Forest Department: Government body that controls the land.
- Industrialists: Use forest produce as raw material (e.g., timber, paper).
- Wildlife Enthusiasts: Want to preserve nature in its pristine form.
Community Participation:
- Amrita Devi Bishnoi (1731): Sacrificed life to protect Khejri trees.
- Chipko Andolan: 'Hug the trees' movement in Reni, Garhwal.
- Arabari Forest Range: Successful restoration of Sal forests with local help in West Bengal.
Water for All
Water is a basic necessity for all terrestrial forms of life.
1. Dams
Built for irrigation and electricity generation.
- Problems: Social (displacement), Economic (high cost), and Environmental (deforestation, loss of biodiversity).
2. Water Harvesting
Capturing rain water where it falls.
- Traditional Methods: Khadins/Nadics (Rajasthan), Ahars/Pynes (Bihar), Kulhs (Himachal Pradesh), Eris (Tamil Nadu).
- Advantages: Recharges groundwater, prevents flooding, and provides water for dry seasons without losing much to evaporation.
Coal and Petroleum
Fossil fuels formed from biomass millions of years ago. They are exhaustible resources.
1. Pollution
Burning coal and petroleum releases CO₂, Oxides of Nitrogen, and Sulphur.
- Global Warming: Caused by high CO₂ levels (Greenhouse effect).
- Acid Rain: Caused by Sulphur/Nitrogen oxides.
2. Why manage them?
They contain Carbon, Hydrogen, Nitrogen, and Sulphur. If burned in limited air, they produce poisonous Carbon Monoxide (CO). We need to use them judiciously as they will last only for a few more decades.
Frequently asked questions
Are these Sustainable Management of Natural Resources notes free?
Yes — the Sustainable Management of Natural Resources notes for Science (Class 10) on Siksha Sarovar are completely free to read, with no account required.
Do these notes follow CBSE and HBSE?
Yes. The Sustainable Management of Natural Resources notes are NCERT-aligned and include guidance for both CBSE and Haryana Board (HBSE), with important questions and MCQs for revision.
What does the Sustainable Management of Natural Resources chapter cover?
Concept explanations, key formulas and definitions, fully solved examples and board-pattern practice questions for Sustainable Management of Natural Resources.