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Natural Resources and Their Use : Class 8 Free Notes and Mind Map (Free PDF Download)

resource

Natural resources are the foundation of human civilization and play a crucial role in our daily lives. Understanding natural resources helps us appreciate our relationship with the environment and develop responsible practices for future generations.

Definition of Nature and Resources

Nature includes all life and non-life forms in our environment that are not created by humans. Elements of Nature become resources when humans begin to use them for their sustenance and survival. They also transform into resources when humans create new things from them for consumption purposes. For example, trees exist independently in nature, but they become resources when converted into furniture, paper, or other useful products.

Conditions for Resources

For any entity to be classified as a resource, it must satisfy three essential conditions:

Examples of Natural Resources

Natural resources can be categorized into obvious and less obvious examples based on their visibility and common recognition:

Obvious Natural Resources:

Less Obvious Natural Resources:

Earth’s Treasures

The Earth contains numerous treasures that have been formed over millions of years through various geological processes. Humans have gradually learned to identify, extract, and utilize these treasures for their benefit and development. All materials and substances that occur naturally in our environment and provide value to human beings are classified as natural resources.

Categories of Natural Resources

Based on Uses

Resources Essential for Life

These are the most critical resources without which human life cannot exist on Earth:

Life could not exist on Earth without these three fundamental elements, making them the most precious and irreplaceable natural resources available to humanity.

Resources for Materials

Humans have developed remarkable abilities to create various physical objects using nature’s generous gifts:

Resources for Energy

Energy serves as the cornerstone of modern living and drives all industrial development activities:

Based on Renewability

Nature’s Principles

Nature operates according to fundamental principles that maintain perfect balance and ensure long-term sustainability:

Renewable Resources

These are resources that exhibit restoration and regeneration characteristics over reasonable periods of time:

Examples of Renewable Resources:

India’s Renewable Resource Advantages:

Conditions for Renewability

For resources to remain renewable and sustainable, certain critical conditions must be carefully maintained:

Major Disrupting Factors:

Examples of Cycle Disruption

Human activities have caused several concerning disruptions to natural cycles worldwide:

Non-renewable Resources

These are resources that were created over extremely long geological periods and cannot be replenished at the rate humans consume them:

Examples of Non-renewable Resources:

India’s Non-renewable Resource Status:

Distribution of Natural Resources and Its Implications

Uneven Distribution Effects

Natural resources are not evenly distributed across the planet or within individual countries, creating several important implications:

Economic Impacts

The presence or absence of natural resources significantly impacts regional economic development patterns:

Positive Economic Effects:

Associated Costs and Challenges:

Trade and Development

The geographical location and availability of natural resources play a crucial role in trade and development:

Transboundary Issues

Natural resources often cross political boundaries, creating complex management challenges that require cooperation:

The ‘Natural Resource Curse’

Definition and Concept

The natural resource curse is a paradoxical economic phenomenon that challenges common assumptions about wealth and resources:

Causes of the Curse

Several interconnected factors contribute to the development of the natural resource curse:

India’s Approach

India has generally managed to avoid the worst effects of the natural resource curse through strategic planning:

Ongoing Challenges:

Responsible and Wise Use of Natural Resources: Stewardship

Current Challenges

Scientists and environmentalists worldwide have issued serious warnings about the consequences of irresponsible resource use:

Major Environmental Problems:

Restoration and Regeneration of Renewable Resources

Groundwater Depletion Issue

Groundwater depletion has emerged as a critical environmental and economic problem across India:

The Problem:

Solutions Being Attempted

Various traditional and modern solutions are being implemented to address groundwater depletion:

Soil Degradation Problem

Soil degradation has become a serious threat to agricultural productivity and food security:

Traditional Solutions

Ancient agricultural practices offer sustainable solutions for soil management:

Case Studies

Overexploitation of Groundwater: Punjab Case Study

Background

Punjab state played a crucial role in India’s agricultural transformation and food security:

The Problem Development

The transformation of Punjab’s agriculture led to unforeseen environmental consequences:

Current Situation

The long-term consequences of intensive agriculture are now clearly visible in Punjab:

The Case of Cement

The Challenge

Cement production presents a complex challenge balancing development needs with environmental protection:

Environmental Impact

Cement production creates multiple environmental problems that affect human and animal health:

Solutions Being Developed

Various innovative solutions are being developed to address cement-related environmental problems:

Vrikshāyurveda – Ancient Indian Botanical Science

Background

Vrikshāyurveda represents India’s ancient scientific approach to plant and tree care:

Important Features

Vrikshāyurveda provides detailed scientific guidance for sustainable agriculture and forestry:

Sikkim’s Organic Farming Success

Pema’s Family Transformation

The story of one family illustrates Sikkim’s successful transition to organic farming:

The Process

The family’s transformation involved adopting traditional and sustainable farming practices:

Sikkim’s Achievement

Sikkim’s organic farming success has become a model for sustainable agriculture worldwide:

The International Solar Alliance

Background

The International Solar Alliance represents global cooperation for renewable energy development:

India’s Contributions

India has played a leading role in promoting solar energy globally through various initiatives:

Responsible and Judicious Use of Resources

For Non-renewable Resources

The management of non-renewable resources requires careful planning and conservation strategies:

Social Equity Concerns

The distribution and access to natural resources often reveals significant social inequalities:

Philosophical Perspective

A deeper understanding of our relationship with nature guides responsible resource management:

Questions and Answers

1. What can make what is today a renewable resource non-renewable tomorrow? Describe some actions that can prevent this from happening.

Answer:

A renewable resource can become non-renewable when:

Prevention Actions:

2. Name five ecosystem functions that serve humans.

Answer:

3. What are renewable resources? How are they different from non-renewable ones? What can people do to ensure that renewable resources continue to be available for our use and that of future generations? Give two examples.

Answer:

Renewable Resources:

Differences from Non-renewable:

Actions to Ensure Availability:

Two Examples:

4. Identify cultural practices in your home and neighbourhood that point to mindfulness in the use of natural resources.

Answer:

Traditional practices showing mindfulness:

5. What are some considerations to keep in mind in the production of goods for our current use?

Answer:

Important considerations include:

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