Non-Rationalised Geography NCERT Notes, Solutions and Extra Q & A (Class 6th to 12th) | |||||||||||||||||||||||||||
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6th | 7th | 8th | 9th | 10th | 11th | 12th |
Class 8th Chapters | ||
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1. Resources | 2. Land, Soil, Water, Natural Vegetation And Wildlife Resources | 3. Mineral And Power Resources |
4. Agriculture | 5. Industries | 6. Human Resources |
Chapter 1 RESOURCES AND DEVELOPMENT
Types Of Resources
Anything that can be used to satisfy a need is considered a resource. Resources possess utility or usability, which gives them value. Resources are primarily classified into three types: natural resources, human-made resources, and human resources.
Natural Resources
Natural resources are derived from nature and used with minimal modification. Examples include air, water, soil, and minerals. These can be further categorized into:
- Renewable Resources: These resources replenish quickly or are unlimited and unaffected by human activities, such as solar and wind energy. However, the overuse of even renewable resources like water, soil, and forests can deplete their stock.
- Non-Renewable Resources: These have a limited stock, and their replenishment takes thousands of years, exceeding human lifespans. Examples include coal, petroleum, and natural gas. The distribution of natural resources is unequal across the Earth due to variations in terrain, climate, and altitude.
Human Made Resources
Human-made resources are created by people using natural resources. This includes structures like buildings, bridges, roads, machinery, and vehicles, as well as technology itself. Natural substances become resources only after humans learn to extract and transform them, like extracting iron from iron ore.
Human Resources
Human beings themselves are the most important resource. Their ideas, knowledge, inventions, and discoveries lead to the creation of more resources. Education and health are crucial for developing people's skills and making them valuable human resources, a process known as human resource development.
Conserving Resources
Resource conservation involves using resources carefully and allowing them time to renew. Sustainable development is the balance between using resources to meet present needs and conserving them for future generations. Individuals can contribute to conservation by reducing consumption, recycling, and reusing materials. Recognizing that all lives are interconnected and that the planet's future depends on preserving its life support systems is essential. This involves respecting all forms of life, improving human quality of life, conserving Earth's vitality and diversity, minimizing environmental damage, and changing personal attitudes and practices towards the environment.
Resource Conservation
Resource conservation is the careful use and management of resources to ensure their availability for future generations. This includes reducing unnecessary consumption, recycling materials, and reusing items wherever possible.
Sustainable Development
Sustainable development is the practice of carefully utilizing resources to meet current needs without compromising the ability of future generations to meet their own needs. It emphasizes balancing resource use with conservation.
Some Principles Of Sustainable Development
Key principles of sustainable development include respecting and caring for all forms of life, improving the quality of human life, conserving Earth's vitality and diversity, minimizing the depletion of natural resources, changing personal attitudes and practices towards the environment, and enabling communities to care for their own environment.
Exercises
The chapter concludes with exercises designed to reinforce the understanding of resources and their development. These include answering questions about resource distribution, conservation, the importance of human resources, and the concept of sustainable development. Practical activities involve listing resources used at home and school, identifying commercially valued resources, and creating bar diagrams from data. There are also creative tasks like writing a letter to a minister regarding worker payments or imagining uses for natural objects as resources, fostering a deeper engagement with the concepts presented.