---
title: "NCERT Solutions for Class 6 Science Chapter 11 Nature’s Treasures"
url: https://www.swavid.com/science/class/6/chapter/nature-s-treasures/ncert-solutions
dateModified: 2026-10-07T16:03:48+00:00
---

# NCERT Solutions for Class 6 Science Chapter 11 Nature’s Treasures

This chapter's questions cover students' understanding of natural resources such as air, water, energy from the Sun, forests, soil, rocks, minerals, and fossil fuels, as well as their classification into renewable and non-renewable resources.

Free PDF (8 pages): https://www.swavid.com/api/seo/pdf/ncert/science/class-6/swavid-ncert-solutions-class-6-science-chapter-11-nature-s-treasures-a2c1afd8f5.pdf

## Let us enhance our learning

### Question 1

*3 marks · Short answer*

Fig. 11.9 shows items related to natural resources. Match them with their jumbled up names. Make another table and write the names of these resources. Classify these resources as renewable or non-renewable.

**Part (a)**

1. Match the tap pouring water with the jumbled name 'atwre' to get water.
2. Match the windmill/forest item with 'refost' or 'ndiw' to get forest or wind.
3. Match the rock/coal with 'ocrk' to get rock.

Answer (a): Water, forest/wind, and rock.

**Part (b)**

1. Make a table with columns for Item, Resource Name, and Classification.

Answer (b): Table prepared linking items to their correct names.

**Part (c)**

1. Classify water and forests as renewable resources.
2. Classify rocks and coal as non-renewable resources.

Answer (c): Water and forests are renewable; rocks and coal are non-renewable.

**Answer:** The resources are water (renewable), wind or forest (renewable), and rocks or coal (non-renewable) as shown in Fig. 11.9.

> Common mistake: Confusing renewable resources like water and forests with non-renewable resources like rocks and coal.

### Question 2

*1 mark · True or false*

State whether the following statements are True [T] or False [F]. If False, correct them.
(i) Nature has all the resources to meet human needs.
(ii) Machines are a resource found in nature.
(iii) Natural gas is a non-renewable resource.
(iv) Air is a renewable resource.

**Part (i)**

1. Nature provides essential resources required for our survival to meet human needs.

Answer (i): True

**Part (ii)**

1. Machines are created by human beings, so they are human-made resources, not found in nature.

Answer (ii): False. Machines are human-made resources.

**Part (iii)**

1. Natural gas takes millions of years to form and is present in limited quantities, making it a non-renewable resource.

Answer (iii): True

**Part (iv)**

1. Air gets replenished through natural processes and is a renewable resource.

Answer (iv): True

**Answer:** (i) True, (ii) False, (iii) True, (iv) True

> Common mistake: Thinking machines are natural resources because they are made from materials obtained from nature.

### Question 3

*1 mark · MCQ*

Fill in the blanks using the most appropriate option—
(i) A fuel that is commonly used in two wheelers like scooters or bikes is.........
(ii) An example of a renewable resource is ..................

- Kerosene, Petrol, Diesel, LPG
- Coal, Water, Natural gas, Petrol

**Part (i)**

1. Petrol is the most widely used fuel for two-wheelers like scooters and bikes.

Answer (i): (b) Petrol

**Part (ii)**

1. Water is a renewable resource that gets replenished by natural processes like the water cycle.

Answer (ii): (b) Water

**Answer:** Correct options are chosen based on common usage and textbook definitions.

> Common mistake: Choosing diesel for scooters instead of petrol.

### Question 4

*3 marks · Short answer*

Classify the following as renewable or non-renewable resources—coal, natural gas, forests and minerals.

**Solution**

1. Renewable resources are those that get replenished within a reasonable period of time through natural processes.
2. Non-renewable resources are found in limited quantities and take millions of years to form, so they cannot be quickly replenished.
3. Based on this, forests are renewable resources, while coal, natural gas, and minerals are non-renewable resources.

**Answer:** Renewable resource: forests. Non-renewable resources: coal, natural gas, and minerals.

> Common mistake: Classifying coal and natural gas as renewable resources.

### Question 5

*3 marks · Short answer*

Why do we say that petroleum is a non-renewable resource?

**Solution**

1. Petroleum is formed from the remains of ancient microorganisms and plants buried deep inside the earth.
2. This formation process takes millions of years.
3. Since they are found in limited quantities and get exhausted once used without getting replenished in a reasonable period, petroleum is a non-renewable resource.

**Answer:** Petroleum is non-renewable because it takes millions of years to form and is present in limited quantities.

> Common mistake: Stating that petroleum can be easily made in laboratories or renewed quickly.

### Question 6

*3 marks · Short answer*

It is difficult to regrow forests. Justify this statement.

**Solution**

1. Forests contain a diverse variety of plants, trees, and living organisms that take a long time to grow and establish.
2. Large-scale cutting of trees destroys the complex ecosystem and soil quality.
3. It takes many years to grow a new forest or restore lost forests, making it difficult to regrow them quickly.

**Answer:** It is difficult to regrow forests because trees take many years to grow and large-scale destruction disrupts the ecosystem and soil.

> Common mistake: Assuming that planting a few saplings immediately restores a full forest ecosystem.

### Question 7

*3 marks · Short answer*

Make a list of five daily activities in which you use natural resources. Suggest ways by which you can reduce their use.

**Solution**

1. Daily activity 1: Washing clothes using water; reduction method: use washing machines with full loads or reuse rinse water for cleaning floors.
2. Daily activity 2: Cooking food using LPG (fossil fuel); reduction method: use pressure cookers and turn off flames promptly.
3. Daily activity 3: Travelling to school using fossil fuel vehicles; reduction method: walk, cycle, or use public transport.
4. Daily activity 4: Using electricity produced from coal for lighting; reduction method: switch off lights and fans when leaving a room.
5. Daily activity 5: Using paper made from trees for writing; reduction method: reuse paper on both sides and avoid wastage.

**Answer:** Five daily activities using natural resources and their reduction methods are listed in the steps.

> Common mistake: Listing activities without providing practical ways to reduce their use.

### Question 8

*2 marks · Very short answer*

List four activities that are possible due to the presence of air.

**Solution**

1. 1. Breathing and respiration in living beings to survive.
2. 2. Flying of birds, kites, and airplanes.
3. 3. Rotation of wind-mill blades and paper firkis (pinwheels).
4. 4. Rustling of leaves and swaying of clothes hanging on a clothesline.

**Answer:** Breathing, flying of kites, rotation of windmills, and movement of clothes on a line are activities possible due to air.

> Common mistake: Listing uses of wind instead of general activities made possible by air.

### Question 9

*3 marks · Short answer*

How can you contribute towards enhancing the green cover of your locality? Make a list of actions to be taken.

**Solution**

1. 1. Participate in tree plantation drives and events like Van Mahotsav in July.
2. 2. Plant saplings and take care of trees in school and around the neighbourhood.
3. 3. Protect existing trees from being cut down and raise awareness among community members.

**Answer:** We can enhance green cover by participating in Van Mahotsav, planting saplings, and protecting existing trees.

> Common mistake: Only mentioning planting without focusing on protection and community awareness.

### Question 10

*3 marks · Case-based*

In the given illustration, we see that food is being cooked.
Answer the following questions—
(i) What type of energy is being used for cooking?
(ii) Name one benefit and one drawback of using this type of energy for cooking.

**Part (i)**

1. 1. The illustration shows a solar cooker being used for cooking food.
2. 2. Therefore, solar energy (heat from the Sun) is being used for cooking.

Answer (i): Solar energy (energy from the Sun)

**Part (ii)**

1. 1. Benefit: It is a clean and renewable source of energy that does not pollute the air or consume fossil fuels.
2. 2. Drawback: It cannot be used during cloudy days, rainy days, or at night when sunlight is not available.

Answer (ii): Benefit: Pollution-free and renewable. Drawback: Depends on sunlight and cannot be used at night or on cloudy days.

**Answer:** Solar energy is used for cooking with benefits of being pollution-free and free of cost, but has the drawback of not working on cloudy days or at night.

> Common mistake: Confusing solar cookers with conventional gas stoves or electric heaters.

### Question 11

*3 marks · Short answer*

Cutting down trees on a large scale impacts the quality of the soil. Why do you think it is so?

**Solution**

1. 1. Plant roots hold firmly onto the soil particles and prevent the soil from being washed away easily.
2. 2. Fallen leaves decay on the forest floor and enrich the soil with essential nutrients.
3. 3. Cutting down trees removes root grip and stops leaf litter, leading to soil erosion and loss of soil fertility.

**Answer:** Cutting down trees causes soil erosion as roots no longer hold the soil, and stops nutrient replenishment from decaying leaves.

> Common mistake: Forgetting to mention the role of plant roots in holding soil and decaying leaves in providing nutrients.

### Question 12

*3 marks · Short answer*

Explain two ways in which human activities pollute the air. Propose one action which can help in reducing air pollution.

**Solution**

1. 1. Way 1: Burning fossil fuels in vehicles (like cars, buses, and scooters) releases smoke and carbon dioxide gas.
2. 2. Way 2: Industrial processes and burning domestic fuels like coal and wood release harmful gases and smoke into the air.
3. 3. Action to reduce air pollution: Use public transport, carpool, or shift to electric vehicles and cleaner fuels like CNG.

**Answer:** Human activities pollute air through vehicle emissions and industrial smoke; using public transport or electric vehicles helps reduce air pollution.

> Common mistake: Listing water or land pollution sources instead of air pollution sources.

### Question 13

*3 marks · Short answer*

A family uses solar panels to generate electricity, a gas stove to cook food and a windmill for pumping water from a well. What would happen if there were no sunlight for a week?

**Solution**

1. Solar panels would not be able to capture the Sun's energy to produce electricity, leading to a power shortage.
2. Windmills depend on wind currents caused by solar heating, so prolonged lack of sunlight would affect wind patterns and water pumping.
3. Plants would not get sunlight to prepare food, halting plant growth and affecting food chains.

**Answer:** Without sunlight for a week, solar electricity generation would stop, wind patterns would be affected due to lack of heating, and plants would fail to make food, disrupting life on Earth.

> Common mistake: Only mentioning electricity generation while forgetting the impact on plants and wind.

### Question 14

*1 mark · Fill in the blank*

Fill up the blanks using the following terms—
(fossil fuels, forest, air, petroleum, coal, water and non-renewable resource)

**Solution**

1. Refer to the flowchart in the textbook and fill in the appropriate natural resources and their categories from the given list.

**Answer:** Completed natural resources flowchart with terms like renewable resources, non-renewable resources, air, water, forest, fossil fuels, coal, and petroleum.

> Common mistake: Placing non-renewable resources under renewable resources in the flowchart.

### Question 15

*5 marks · Long answer*

There is an increasing demand of trees to meet the requirements of industries and for housing. Therefore, trees are being felled. Is it justified? Discuss and prepare a brief report.

**Solution**

1. Felling trees on a large scale to meet industrial and housing demands is not justified.
2. It leads to a decrease in forest cover, which destroys the natural home and shelter of wild animals, birds, and insects.
3. It causes soil erosion because plant roots hold the soil particles together and prevent them from being washed away.
4. It increases carbon dioxide in the atmosphere, leading to large-scale air pollution and global warming.
5. We must use resources responsibly, plant new trees, and promote afforestation to protect our environment for future generations.

**Answer:** Cutting down trees on a large scale is not justified as it harms biodiversity, causes soil erosion, and increases air pollution, so we must protect and regenerate forests.

> Common mistake: Stating that cutting trees is fully justified for development without considering environmental consequences.

### Question 16

*5 marks · Long answer*

Propose a plan to use less water in your school. What steps would you take to make this plan happen and how would it help the environment?

**Solution**

1. Propose a school water conservation plan focusing on checking leakages and turning off taps after use.
2. Organize campaigns to educate students about turning off taps tightly and reporting leaking pipes immediately.
3. Install rainwater harvesting systems in the school to collect and store rainwater for gardening and cleaning.
4. Use recycled wastewater or stored rainwater for watering school gardens and plants instead of fresh tap water.
5. Saving water ensures that limited freshwater sources are conserved and available for future needs without harming the environment.

**Answer:** A school water conservation plan involving leak checks, student awareness, and rainwater harvesting helps conserve precious freshwater and protects the environment.

> Common mistake: Failing to connect school-level water saving steps with broader environmental benefits.

## Frequently asked questions

### How many questions are there in NCERT Solutions for Class 6 Science Chapter 11 Nature’s Treasures?

The exercise titled Let us enhance our learning contains 16 questions in total for this chapter. You can find step-by-step solutions for all of them in the free PDF available on this SwaVid page.

### Which topics are covered by the questions in this chapter?

The questions cover important concepts like air pollution and reduction, classification of natural resources, conservation of forests and sustainable development, and enhancing green cover. Other key topics include fuels and renewable resources, the impact of deforestation on soil, and the importance of air.

### What are the different question types included in the Class 6 Science Chapter 11 exercise?

The exercise features a variety of question types including case-based questions, fill in the blanks, long answers, multiple choice questions, short answers, true or false, and very short answers. SwaVid provides detailed explanations for each type in the free PDF on this page.

### How should I approach long answer questions to score full marks in Class 6 exams?

For long answer questions, you should structure your response with a clear introduction, relevant scientific terms, and logical bullet points where necessary. The detailed answers provided in the free PDF on this SwaVid page can serve as a reliable guide for structuring your responses.

### Is the free PDF for NCERT Solutions of this chapter available according to the new syllabus?

Yes, the solutions on this SwaVid page follow the new NCERT book based on the NCF 2023 for the 2026-27 session. You can easily download the free PDF from this page to aid your exam preparation.

## Related pages

- [Class 6 Science chapters](https://www.swavid.com/science/class/6)

Solutions written by SwaVid, a personal AI tutor for Class 6 to 10 Maths and Science. Practise this chapter free: https://www.swavid.com/start/student