Friday, May 1, 2026

Class 8 1. NATURAL RESOURCES AND THEIR USE

 

Chapter 1.Natural resources and their use. 


QUESTION ANSWERS

.Q1: How do We Categorize Natural Resources?

Ans:  Natural resources  can be categorised based on their use and renewability.

1. Based on their use :

A)Essential resources: Air, water, and soil are crucial for life.

B.)Material resources: Wood, coal, and metals are used to create products.

C)Energy resources: Solar, wind, and fossil fuels generate electricity and provide power to industries.

2. Based on their renewability.

   A)Renewable resources: Timber, water, and solar energy can regenerate over time.

 B) Non-renewable resources: Coal, petroleum, and minerals are limited and take millions of years to form, making them difficult to replace once used.

Q2: What is the Connection Between the Distribution of Natural Resources and Different Aspects of Life?

Ans:Uneven distribution of resources affects where people live, jobs, trade and even conflicts. For example, areas with minerals attract industries, while water-rich regions support farming. Sharing resources like rivers can cause disputes between regions or countries.

Q3. What are the implications of unsustainable use / over-exploitation of natural resources?

Ans:Overuse leads to pollution, loss of biodiversity ,and climate change. example, over-pumping groundwater dries up wells and deforestation reduces wildlife habitats. Sustainable practices are needed For to protect resources for future generations.

Q4: What can make what is today a renewable resource non-renewable tomorrow? Describe some actions that can prevent this from happening.

Ans: A renewable resource can become non-renewable if it is consumed faster than it can regenerate. Key examples include:

1)Overfishing: Removing fish from oceans quicker than they can reproduce.

2)Deforestation: Cutting down trees faster than they can grow back.

3)Groundwater extraction: Taking water from underground sources faster than it can be replenished.

To prevent renewable resources from becoming non-renewable, we can:

1. Use resources at a sustainable rate (take only what nature can replace)

2. Replant trees and protect forests

3. Reduce pollution that harms air, water and soil

4. Use traditional farming methods that keep soil healthy

5 witch to renewable energy like solar and wind power

6. Follow rules that protect natural resources

By being careful and responsible, we can keep renewable resources available for future generations.



Q5. Name five ecosystem functions that serve humans.

Ans.Five important ecosystem functions that benefit humans:

I)Trees produce oxygen for us to breathe while absorbing carbon dioxide.

ii)Forests and wetlands naturally filter water, making it clean for drinking.

ii)Bees and other pollinators help crops grow by transferring pollen between plants.

iii)Healthy soil supports agriculture by providing nutrients for food crops.

iV)Mangroves and coral reefs protect coastlines from storms and erosion.

V)Ecosystems provide diverse food sources, including plants, animals, and fish, which are vital for human nutrition and survival.

Vi) Ecosystems also regulate climate and prevent floods, showing how deeply we depend on nature's balance.

Q6.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.

Ans. Ans: Renewable resources are natural materials that regenerate over time, such as sunlight, wind, water, and wood. Unlike non-renewable resources like fossil fuels and minerals, they are not exhausted when used responsibly, as they replenish naturally. Non-renewable resources, however, are limited and cannot be restored within a human timescale.

To ensure the availability of renewable resources for future generations, we can:

1)Use clean energy sources, such as solar and wind power.

2)Minimise waste and adopt sustainable practices, like responsible forestry.

For example:

Installing solar-powered street lighting reduces reliance on fossil fuels.

Replanting trees after timber harvests ensures the forest can regenerate.

Q.7. Identify cultural practices in your home and neighbourhood that point to mindfulness in the use of natural resources.

Ans Ans: In our home and neighbourhood, various cultural practices demonstrate a mindful approach to using natural resources:

1)Sacred Trees: Trees like the peepal and banyan are considered sacred and are preserved, promoting tree conservation.

2)Sacred Groves: Forest patches known as sacred groves are protected due to their spiritual importance, helping to maintain biodiversity.

3)Eco-friendly Festivals: Traditional festivals use sustainable materials, such as banana leaves for serving food, clay for making idols, and natural dyes for decorations.

4)Water Conservation: Rituals are performed to clean and honour water bodies like ponds and wells, encouraging the conservation of water.

5)Sustainable Living: Practices such as fasting and simple living during religious observances promote reduced consumption and sustainability.

Q8.What are some considerations to keep in mind in the production of goods for our current use?

When producing goods for current use, we must consider several important factors. 

First, we should use renewable resources carefully without overexploiting them. 

Second, non-renewable resources need to be used wisely so they last longer. 

Third, production methods should minimize pollution and waste. 

Fourth, traditional sustainable practices should be combined with modern technology. 

Fifth, fair distribution of resources is important so everyone benefits. 

Finally, we must think about futuregenerations by maintaining nature's ability to restore itself. These considerations help balance current needs with long-term sustainability



Keywords

1)Nature:Nature is the totality of life and non-life forms that are part of our environment but have not been created by humans.

2)Restoration:Restoration is the process of returning something to its original healthy state if it has been degraded or damaged.

3)Renewable Resources:Resources that are naturally replenished or renewed in a short period of time and can be used again and again without getting exhausted.

Examples: sunlight, wind, water

4)Non-Renewable Resources:Resources that are available in limited quantities and take millions of years to form, so they cannot be replaced quickly once used.

Examples: coal, petroleum, natural gas

5)Regenration:. It is about Nature’s ability to create new life and the conditions for thriving

6)Arghyam: offering, generally of water, as a mark of respect or gratitude.

7)Biodiversity loss :The decline in the variety of life on Earth.

8)Soil degradation :Soil degradation means the decline in the quality and fertility of soil, making it less suitable for growing plants.

9)IASE: International Alliance for Solar Energy 

10)Organic farming:Organic farming  is a method of growing crops without using chemical fertilizers and  pesticides.




































Class 8 1. NATURAL RESOURCES AND THEIR USE

  Chapter 1.Natural resources and their use.  QUESTION ANSWERS .Q1: How do We Categorize Natural Resources ? Ans:  Natural resources  can be...