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ᒪEᗩᖇᑎIᑎG ᒍᑌᑎᑕTIOᑎ
CBSE
CLASS 10 SCIENCE
CHAPTER 16:MANAGEMENT OF NATURAL RESOURCES
NOTES
1. Natural resources: Natural resources are the resources that occur naturally in the environment and are essential for the survival and well-being of living organisms. Examples include air, water, soil, minerals, forests, wildlife, etc.
2. Types of resources: Natural resources can be categorized into two types: a) Renewable resources: Renewable resources are those that can be replenished or regenerated naturally over time, such as sunlight, wind energy, water, forests, etc. b) Non-renewable resources: Non-renewable resources are finite in nature and cannot be replenished once they are completely used up, such as fossil fuels (coal, oil, natural gas), minerals (iron ore, copper, etc.), etc.
3. Sustainable management: Sustainable management of natural resources involves utilizing resources in a manner that meets the present needs without compromising the ability of future generations to meet their own needs. It aims to strike a balance between resource utilization and conservation.
4. Forests and wildlife: Forests play a crucial role in maintaining ecological balance and providing various resources. Sustainable management of forests involves practices like afforestation (planting new trees), reforestation (replanting trees in deforested areas), and forest conservation. Wildlife conservation is essential to maintain biodiversity and ecological stability.
5. Water resources: Water is a vital resource for various purposes like drinking, agriculture, industry, etc. Management of water resources includes measures like rainwater harvesting, watershed management, water conservation, proper irrigation techniques, etc.
6. Mineral resources: Minerals are essential for industrial development. However, their extraction should be done judiciously to prevent their depletion. Conservation of minerals involves reducing wastage, recycling, and adopting efficient mining practices.
7. Fossil fuels: Fossil fuels like coal, oil, and natural gas are non-renewable resources and major contributors to environmental pollution. Sustainable management of fossil fuels involves promoting alternative sources of energy like solar power, wind energy, hydropower, etc.
8.3R principle: The 3R principle stands for Reduce, Reuse, and Recycle. It emphasizes minimizing waste generation, reusing materials wherever possible, and recycling waste to conserve resources.
9. Sustainable development: Sustainable development aims to meet the needs of the present generation without compromising the ability of future generations to meet their own needs. It involves the integration of environmental, social, and economic factors in decision-making processes.
10. Environmental degradation: Uncontrolled and unsustainable utilization of natural resources can lead to environmental degradation, such as deforestation, soil erosion, depletion of water resources, air and water pollution, loss of biodiversity, etc. Sustainable management practices help in preventing or minimizing environmental degradation.
⭐It is important to note that these are just key points from the chapter. To have a more comprehensive understanding, it is recommended to refer to your textbook or class notes for detailed explanations, diagrams, and examples provided by your teacher.
