PW Class 6 Science Chapter 11 Solutions: Nature’s Treasures

Nature provides many resources that you use every day, from water and air to forests, fuels, minerals, and sunlight. Nature’s Treasures helps you understand where these resources come from, how they are used, and why some of them need to be conserved carefully.

The PW Class 6 Science Chapter 11 Solutions help you work through selected textbook exercises with clear answers. The questions below cover renewable and non-renewable resources, petroleum, forests, air, solar energy, soil, and conservation, giving you a useful mix of objective and descriptive practice.

Nature’s Treasures Solutions

Here are selected questions from the chapter exercises. Try answering each question yourself before referring to the solution.

Question 1: The figure shows items related to natural resources. Match them with their jumbled-up names. Classify these resources as renewable or non-renewable.

Answer:

The source uses a picture-based activity to identify these four resources before classifying them.

Question 2: 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.
Answer: True

(ii) Machines are a resource found in nature.
Answer: False
Correct statement: Machines are human-made resources.

(iii) Natural gas is a non-renewable resource.
Answer: True

(iv) Air is a renewable resource.
Answer: True

Question 3: Classify the following as renewable or non-renewable resources—coal, natural gas, forests and minerals.

Answer:

The source classifies forests as renewable and coal, natural gas, and minerals as non-renewable resources.

Question 4: Why do we say that petroleum is a non-renewable resource?

Answer: Petroleum takes millions of years to form and is available in limited quantities. Once it is used, it cannot be produced or replenished within a reasonable period of time. Therefore, petroleum is called a non-renewable resource.

Question 5: It is difficult to regrow forests. Justify this statement.

Answer: Forests take many years, sometimes even decades, to grow back fully. Trees and plants need considerable time to reach their full size. The soil in areas where forests have been cut down or damaged may also become unsuitable for growing new trees and may need special care before new plants can grow properly.

Question 6: List four activities that are possible due to the presence of air.

Answer: Four activities mentioned in the source are:

1. Breathing

2. Generating electricity through wind turbines

3. Transportation through aeroplanes

4. Flying kites

Question 7: In the given illustration, food is being cooked. What type of energy is being used for cooking? Mention one benefit and one drawback.

Answer:

(i) The type of energy being used is solar energy.

(ii) Benefit: Solar energy is a renewable source of energy and does not cause air pollution or global warming, making it environment-friendly.

Drawback: Solar cooking depends on sunlight. It cannot be used effectively during cloudy weather or at night. The source illustrates this question using a solar cooker.

Question 8: Cutting down trees on a large scale impacts the quality of the soil. Why do you think it is so?

Answer: Cutting down trees exposes the topsoil because there are no roots to hold the soil together and less plant cover to reduce the effect of rain. Wind and water can then carry away the loose soil easily, resulting in soil erosion.

Question 9: Explain two ways in which human activities pollute the air. Propose one action that can help in reducing air pollution.

Answer: According to the source:

• Deforestation reduces the number of trees that can absorb carbon dioxide, increasing the concentration of greenhouse gases.

• Burning fossil fuels in vehicles and factories releases harmful pollutants into the air.

One action to reduce air pollution is to promote public transport and electric vehicles, which can reduce the number of fossil-fuel-powered vehicles on roads.

Question 10: 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?

Answer: A school can reduce water use by:

• using grey water for gardening;

• implementing a rainwater harvesting system; and

• installing water-efficient faucets and toilets.

To put the plan into action, water usage can be monitored regularly, reduction targets can be set, and water-conservation initiatives can be encouraged. The source explains that these measures can promote responsible water use and reduce the energy required for water treatment and distribution.

Class 6 Science Chapter 11 Solutions PDF

The Class 6 Science Chapter 11 Solutions PDF covers textbook exercises from Nature’s Treasures. It includes questions on natural resources, renewable and non-renewable resources, forests, fossil fuels, water conservation, air pollution, solar energy, and soil erosion.

You can practise the selected solutions above first and then refer to the complete PDF for the remaining exercises, including activity-based and application-oriented questions.

Strengthen Your Nature’s Treasures Preparation with PW Resources

After completing the exercises, you can use these PW Class 6 Science resources for further revision and practice:

• Class 6 Science Syllabus – Check the complete Class 6 Science syllabus and plan your chapter-wise preparation.

• Class 6 Science Notes – Revise concepts from Nature’s Treasures and other Class 6 Science chapters.

• Class 6 Science Important Questions – Practise additional chapter-based questions on natural resources and their conservation.

• Class 6 Science Sample Papers – Check how well you can apply Chapter 11 concepts along with topics from other chapters.

• Class 6 Science Solutions – Access chapter-wise NCERT solutions for Class 6 Science to work through textbook exercises and check answers across all chapters. 

The PW Class 6 Science Chapter 11 Solutions can help you understand how natural resources are classified, used, and conserved. Once you have completed the textbook questions, revising the chapter and attempting additional practice can help you become more confident with both direct and application-based questions.

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