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Natural Resources and Their Use

🎓 Class 8📖 Exploring Society India and Beyond Part-I📖 8 notes🧠 15 Q&A⏱️ ~12 min

Natural Resources and Their UseStudy Notes

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WHEN DOES NATURE BECOME A RESOURCE?

Explanation

WHEN DOES NATURE BECOME A RESOURCE?

Nature refers to the totality of all life and non-life forms that exist in our environment independently of human creation. These include elements such as trees, water, air, soil, minerals, and fossil fuels. When humans utilize these natural elements for their sustenance or transform them into consumable goods, these elements are termed 'resources'. For example, trees exist naturally in the environment, but when humans cut trees and convert their wood into furniture, the trees are then considered a resource. However, not all natural elements automatically become resources. For an element to be classified as a resource, it must be accessible with current technology, economically feasible to exploit, and culturally acceptable to use. For instance, petroleum may exist deep beneath the ocean floor, but if technology to extract it is lacking or the cost is prohibitive, it cannot be considered a resource yet. Similarly, some forests or groves may be culturally protected and hence not exploited. The Earth holds many treasures formed over millions of years, such as water, air, soil, coal, petroleum, precious stones, metal ores, and timber. These resources are vital for human life and development. Understanding when nature becomes a resource helps us appreciate the relationship between humans and the environment and the importance of sustainable use.

  • Nature includes all life and non-life forms existing independently of humans.
  • Natural elements become resources when humans use them for sustenance or consumption.
  • Accessibility, economic feasibility, and cultural acceptability determine if a natural element is a resource.
  • Examples include trees, water, coal, petroleum, and minerals.
  • Technology and cultural values influence resource exploitation.
  • Resources have formed over millions of years and are vital for human life.
  • 📌 Nature: The totality of life and non-life forms in the environment not created by humans.
  • 📌 Resource: A natural element that is accessible, economically feasible, and culturally acceptable for human use.
  • 📌 Exploitation: Extraction, utilization, and consumption of natural resources.

CATEGORIES OF NATURAL RESOURCES

Explanation

CATEGORIES OF NATURAL RESOURCES

Categorization helps in understanding and communicating complex ideas effectively. Natural resources can be categorized based on their uses and their renewability. Based on uses, natural resources are grouped into three categories: resources essential for life, resources for materials, and resources for energy. Resources essential for life include air, water, and food, which are indispensable for human survival and cannot be artificially created. Resources for materials are those used to make physical objects for utility or beauty, such as wood, marble, coal, and gold. India’s geographical diversity provides a wide variety of such resources. Resources for energy include coal, petroleum, natural gas, sunlight, wind, and flowing water, which power modern living through electricity and fuel. Another important categorization is based on renewability. Renewable resources are those that nature can restore or regenerate over time, such as solar energy, wind energy, water from rivers, and timber from forests. Non-renewable resources, like coal, petroleum, minerals, and metals, are formed over long periods and cannot be replenished at the rate they are consumed. Understanding these categories is crucial for sustainable management and conservation of resources.

  • Natural resources can be categorized by use: essential for life, materials, and energy.
  • Resources essential for life include air, water, and food.
  • Resources for materials are used to create objects for utility and beauty.
  • Resources for energy power modern life and include fossil fuels and renewable sources.
  • Renewable resources can be restored or regenerated naturally over time.
  • Non-renewable resources are finite and formed over millions of years.
  • 📌 Renewable resources: Natural resources that can be replenished naturally over time.
  • 📌 Non-renewable resources: Resources that cannot be replenished at the rate of consumption.
  • 📌 Essential resources: Resources necessary for sustaining life, such as air, water, and food.

Renewable and non-renewable resources

Explanation

Renewable and non-renewable resources

Nature functions through cycles of restoration and regeneration, where waste is minimized and resources are replenished. Renewable resources are those that can be restored naturally over time, such as sunlight, wind, flowing water, forests, and soil.

Practice QuestionsNatural Resources and Their Use

Includes NCERT exercise questions with answers

Q1.1. How do we categorise natural resources? 2. What is the connection between the distribution of natural resources and different aspects of life? 3. What are the implications of unsustainable use / over exploitation of natural resources?

Answer:

1. Natural resources can be categorised in various ways. One common method is based on their use: (a) Resources essential for life (like air, water, food), (b) Resources for materials (like wood, marble, coal, gold), and (c) Resources for energy (like coal, water, petroleum, natural gas, sunlight, wind). Another way is based on their renewability: renewable resources (which can be replenished naturally, like water, forests) and non-renewable resources (which cannot be replenished within a human time scale, like coal, petroleum). 2. The distribution of natural resources affects various aspects of life including the economic activities, settlement patterns, culture, and development of regions. Areas rich in certain resources may develop industries based on those resources, influencing employment and lifestyle. Unequal distribution can lead to regional disparities. 3. Unsustainable use or over exploitation of natural resources leads to depletion and degradation of these resources. This can cause environmental problems such as deforestation, soil erosion, water scarcity, loss of biodiversity, and pollution. It threatens the ability of future generations to meet their needs and can disrupt ecological balance.

Explanation:

The categorisation helps in understanding and managing resources effectively. The connection between resource distribution and life aspects is evident in how societies develop around resource availability. Unsustainable use leads to resource exhaustion and environmental harm, highlighting the need for conservation.

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Q2.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 if it is used faster than it can be replenished. For example, overcutting trees faster than they grow can deplete forests, making timber non-renewable. Actions to prevent this include sustainable harvesting, reforestation, conservation, and reducing waste.

Explanation:

Renewable resources depend on natural processes to replenish. If human activities exceed the natural regeneration rate, the resource becomes effectively non-renewable. Sustainable practices ensure balance between use and replenishment.

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Q3.Name five ecosystem functions that serve humans.

Answer:

Five ecosystem functions that serve humans are: (1) Provision of food (crops, fish, fruits), (2) Supply of fresh water, (3) Regulation of climate and air quality, (4) Pollination of plants, (5) Decomposition and nutrient cycling.

Explanation:

Ecosystems provide essential services that support human life and economic activities. These functions maintain environmental balance and resources.

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Q4.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 are natural resources that can be replenished naturally over time, such as sunlight, wind, and water. Non-renewable resources, like coal and petroleum, exist in finite amounts and cannot be replenished on a human timescale. To ensure renewable resources remain available, people can practice conservation, sustainable use, and protect natural habitats. Examples include solar energy and forests.

Explanation:

Renewable resources regenerate naturally and can be used sustainably if managed properly. Non-renewable resources are limited and require careful use to avoid depletion.

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Q5.Identify cultural practices in your home and neighbourhood that point to mindfulness in the use of natural resources.

Answer:

Examples of cultural practices showing mindfulness include: using water sparingly during daily chores, segregating waste for recycling, planting trees during festivals, using cloth bags instead of plastic, and repairing items instead of discarding them. These practices reflect respect and careful use of natural resources.

Explanation:

Cultural habits influence resource use. Mindful practices help conserve resources and reduce environmental impact, ensuring sustainability.

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Q6.What are some considerations to keep in mind in the production of goods for our current use?

Answer:

Considerations include: using resources efficiently to minimize waste, choosing sustainable materials, reducing pollution during production, ensuring products are durable and repairable, and considering the environmental impact throughout the product's life cycle. This helps conserve resources and protects the environment for future generations.

Explanation:

Production impacts natural resources and environment. Sustainable production balances current needs with conservation, reducing negative effects and promoting long-term availability.

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Q7.What conditions must be met for a natural element to be classified as a resource?
A.A) It must be technologically accessible, economically feasible, and culturally acceptable
B.B) It must be abundant, free to use, and found only on land
C.C) It must be visible, easy to extract, and owned by the government
D.D) It must be renewable, non-toxic, and used only for energy

Answer:

It must be technologically accessible, economically feasible, and culturally acceptable

Explanation:

For a natural element to be considered a resource, humans must be able to access it with current technology, its extraction must be economically viable, and its use must be culturally acceptable. This ensures that the resource can be practically and ethically utilized.

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Q8.Which of the following is NOT an example of a natural resource according to the chapter's definition?
A.A) Petroleum extracted from offshore rigs
B.B) Trees cut and made into furniture
C.C) Plastic buttons on a shirt
D.D) Water from rivers used for drinking

Answer:

Plastic buttons on a shirt

Explanation:

Plastic buttons are man-made products derived from synthetic materials, not directly natural elements. Petroleum, trees, and water are natural elements used by humans and thus classified as natural resources.

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