Are you looking for Class 6 Science Chapter 11 – Nature’s Treasures MCQ Questions with Answers? You are in the right place! These multiple choice questions are based on the CBSE Curiosity Book and help students practice important concepts and prepare effectively for exams.
Table of Contents
These MCQs are designed to enhance your understanding and boost your confidence. You can also use them for class tests, school assessments, or self-practice. Let’s begin the quiz!
Class 6 Science Chapter 11: Nature’s Treasures MCQ Questions with Answers
Question 1.Which gas makes up the largest proportion of air?
(a) Oxygen
(b) Nitrogen
(c) Carbon dioxide
(d) Argon
Show Answer
Answer: (b) Nitrogen
Explanation: About 78% of air is nitrogen, making it the major component of Earth’s atmosphere.
Question 2.
Which gas in the atmosphere is essential for respiration?
(a) Oxygen
(b) Nitrogen
(c) Carbon dioxide
(d) Hydrogen
Show Answer
Answer: (a) Oxygen
Explanation: Oxygen is inhaled by living beings to release energy from food during respiration.
Question 3.
Which gas is essential for photosynthesis in plants?
(a) Nitrogen
(b) Oxygen
(c) Carbon dioxide
(d) Hydrogen
Show Answer
Answer: (c) Carbon dioxide
Explanation: Plants use carbon dioxide and sunlight to make food by photosynthesis.
Question 4.
Which of the following is a renewable resource?
(a) Coal
(b) Petroleum
(c) Solar energy
(d) Natural gas
Show Answer
Answer: (c) Solar energy
Explanation: Sunlight is available continuously and is inexhaustible, making it renewable.
Question 5.
What percentage of Earth’s surface is covered by water?
(a) About 50%
(b) About 61%
(c) About 71%
(d) About 81%
Show Answer
Answer: (c) About 71%
Explanation: Around 71% of Earth is covered with water, but only a small fraction is fresh water.
Question 6.
Which layer of soil is rich in humus and nutrients?
(a) Topsoil
(b) Subsoil
(c) Bedrock
(d) Gravel
Show Answer
Answer: (a) Topsoil
Explanation: Topsoil contains organic matter and nutrients, making it fertile for plant growth.
Question 7.
Which of these is NOT a fossil fuel?
(a) Coal
(b) Petroleum
(c) Natural gas
(d) Solar energy
Show Answer
Answer: (d) Solar energy
Explanation: Solar energy is renewable, while coal, petroleum, and natural gas are fossil fuels.
Question 8.
Forests help in maintaining the balance of which two gases in nature?
(a) Oxygen and carbon dioxide
(b) Oxygen and nitrogen
(c) Nitrogen and carbon dioxide
(d) Carbon dioxide and hydrogen
Show Answer
Answer: (a) Oxygen and carbon dioxide
Explanation: Forests release oxygen during photosynthesis and absorb carbon dioxide, maintaining balance.
Question 9.
What is the main source of energy for life on Earth?
(a) Water
(b) Soil
(c) Sun
(d) Wind
Show Answer
Answer: (c) Sun
Explanation: The Sun provides energy directly or indirectly for all life processes on Earth.
Question 10.
Which of the following is a non-renewable resource?
(a) Wind
(b) Coal
(c) Sunlight
(d) Water
Show Answer
Answer: (b) Coal
Explanation: Coal takes millions of years to form, hence is considered a non-renewable resource.
Question 11.
What is the main constituent of petroleum?
(a) Hydrocarbons
(b) Oxygen
(c) Nitrogen
(d) Metals
Show Answer
Answer: (a) Hydrocarbons
Explanation: Petroleum is a mixture of hydrocarbons like petrol, diesel, and kerosene.
Question 12.
Which of these is an inexhaustible natural resource?
(a) Coal
(b) Petroleum
(c) Air
(d) Natural gas
Show Answer
Answer: (c) Air
Explanation: Air is a renewable and inexhaustible resource available everywhere on Earth.
Question 13.
Which of these resources is obtained from forests?
(a) Timber
(b) Medicines
(c) Rubber
(d) All of these
Show Answer
Answer: (d) All of these
Explanation: Forests provide timber, medicines, latex (for rubber), food, and many other resources.
Question 14.
Which of the following helps in preventing soil erosion?
(a) Deforestation
(b) Afforestation
(c) Overgrazing
(d) Mining
Show Answer
Answer: (b) Afforestation
Explanation: Planting trees binds soil and prevents erosion caused by wind and water.
Question 15.
Which mineral is commonly used in making pencils?
(a) Graphite
(b) Coal
(c) Limestone
(d) Mica
Show Answer
Answer: (a) Graphite
Explanation: Graphite, a form of carbon, is used in making pencil leads.
Question 16.
What is the main cause of global warming?
(a) Oxygen increase
(b) Carbon dioxide increase
(c) Nitrogen increase
(d) Argon increase
Show Answer
Answer: (b) Carbon dioxide increase
Explanation: Higher levels of CO₂ trap heat in the atmosphere, causing global warming.
Question 17.
Which is the cleanest form of energy?
(a) Coal
(b) Petroleum
(c) Solar energy
(d) Diesel
Show Answer
Answer: (c) Solar energy
Explanation: Solar energy is pollution-free and renewable, making it the cleanest form of energy.
Question 18.
What is the main constituent of natural gas?
(a) Methane
(b) Propane
(c) Butane
(d) Ethane
Show Answer
Answer: (a) Methane
Explanation: Natural gas is primarily composed of methane, a simple hydrocarbon.
Question 19.
Which practice helps in the conservation of water?
(a) Leaving taps open
(b) Rainwater harvesting
(c) Wasting water
(d) Excessive irrigation
Show Answer
Answer: (b) Rainwater harvesting
Explanation: Collecting and storing rainwater helps conserve water for future use.
Question 20.
Which rock is known as the ‘building stone’?
(a) Coal
(b) Granite
(c) Graphite
(d) Petroleum
Show Answer
Answer: (b) Granite
Explanation: Granite is durable and used widely as a building stone.
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Conclusion
We hope these Class 6 Science MCQ Questions with Answers for Chapter 11 – Nature’s Treasures helped you in your preparation. Practice more to master the concepts and score higher in your exams.
For more chapter-wise MCQs, worksheets, and study materials, explore our Class 6 Science MCQ Questions section.
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Frequently Asked Questions (FAQs) on Nature’s Treasures Class 6 MCQ Questions
A1: The best way to practice Class 6 Science MCQ questions is to go through each chapter’s concepts from your textbook and then attempt MCQs chapter-wise. This helps reinforce learning and improve concept clarity.
A2: Yes, all the multiple choice questions provided here are strictly based on the CBSE Class 6 Science Curiosity Book syllabus to ensure complete exam relevance.
A3: Absolutely! These MCQs are perfect for school assessments, classroom practice, and quick revision before exams.
A4: Yes, answers are provided for every MCQ to help students cross-check and learn from their mistakes.
A5: MCQ questions improve analytical thinking, speed, and concept retention. Regular practice helps students become confident and perform better in exams.
A6: You can explore more chapter-wise Class 6 Science MCQ Questions with answers on our website’s dedicated section: Class 6 Science MCQ Questions.
