Practice Key Questions on Major Domains of the Earth for Class 6 Exams 2025-26
The second largest continent on the Earth is _______.
______ is the only ocean which is named after a country.
______ is the largest mountain range on the Earth.
Wind is basically ______ air.
Deepest ocean on the Earth is ______.
2. Match the following:
3. Write true or false
The first Indian woman to climb on mount Everest was Sucheta Kriplani.
The huge water bodies are called oceans.
The Indian ocean is a circular shaped ocean.
Global warming is due to increasing amounts of carbon dioxide.
One of the effects of global warming is melting of glaciers.
4. Circle the odd one out.
Indian ocean pacific ocean nile river atlantic ocean
Atmosphere air carbon dioxide snow
Asia Europe Amazon North America
Coal petroleum air natural gas
Ocean continents countries planets
5. What is the content of nitrogen in the atmosphere?
6. Which cycle is shown in the figure below?
Cycle
7. Which gas is necessary for human survival?
8. What is the name of the envelope of air around earth?
9. Define atmosphere?
10. What is the difference between air and wind?
11. Carbon dioxide is essential for living organisms. Give one reason.
12. Give names of the continents of the Earth in ascending order of their sizes.
13. What are the major gases present in the earth’s atmosphere?
14. How is Strait different from Isthmus?
15. Give the name of the largest continent of the Earth with its area.
16. Which are the three highest mountain ranges in the world?
17. What is the relationship between air temperature and air pressure?
18. Give names of the different layers of the earth.
19. Define the outermost layer of the atmosphere.
20. Why is the ozone layer necessary for Earth?
21. What is the formula for ozone gas?
22. What is the significance of the nitrogen gas present in the atmosphere?
23. Which gas is essential for burning and which gas can extinguish fire?
24. Define photosynthesis?What gas is released as a byproduct during photosynthesis?
25.
Answers for Worksheet
1.
Africa
Indian ocean
Himalayas
Moving
Pacific
2.
Wind
Continent
Antarctic desert
10,000 km
River Nile
3.
False
True
False
True
True
4.
Nile river
Snow
Amazon
Air
Planets
5. 78%
6. Oxygen cycle
7. Oxygen
8. Atmosphere
9. Atmosphere is a layer of gases around the Earth. Life on the earth is possible due to the atmosphere only. Atmosphere contains gases such as oxygen, nitrogen, carbon dioxide etc.
10. The mixture of gases around earth is called air and wind is the horizontal movement of air.
11. Plants need carbon dioxide for their survival, in exchange, they give oxygen which is necessary for human survival. Carbon dioxide helps in respiration. It is also a making component in photosynthesis.
Carbon dioxide plays a very important role in regulating the temperature of earth and it is one of the greenhouse gasses.
12. Asia < Africa < North America < South America < Antarctica < Europe < Australia
13. Major gases present in the atmosphere are nitrogen, oxygen and carbon dioxide. Nitrogen is 78% in the atmosphere whereas oxygen is 21%. The remaining 1% constitutes other gases and water vapour.
14. Strait is a narrow land which joins two water bodies whereas an isthmus is a narrow water body which joins two land masses.
15. Asia is the largest continent in the world with an area of 44.58 million km square.
16. The himalayas are the highest mountain range followed by Karakoram range and Hindu kush range.
17. Air temperature changes the air pressure.
18. Stratosphere, troposphere, mesosphere, thermosphere, exosphere are the different layers of earth's atmosphere. Stratosphere is the innermost layer whereas exosphere is the outermost layer of the earth's atmosphere.
19. Exosphere is the outermost layer of the earth’s atmosphere, it consists of light gas molecules such as hydrogen, helium.
20. Ozone layer protects the earth from the harmful UV rays of the sun. It absorbs a portion of sun's radiations and prevents them from reaching the earth surface.
21. Air is made up of 78% of nitrogen, 21% of oxygen and 1% of other gases and water vapour.
22. Nitrogen gas is necessary for plants as it helps in nitrogen fixation. It is also a major component of chlorophyll which is present in plantsplants by which plants make their own food through photosynthesis.
23. Oxygen gas is essential for burning and carbon dioxide gas is used in fire extinguishers.
24. Photosynthesis is a process by which plants make their food using carbon dioxide and sunlight. Plants use the chlorophyll pigment during photosynthesis and oxygen gas is released as a byproduct.
25. Oxygen gas
Advantages of Learning the Chapter Major Domains of the Earth
The chapter helps students understand various parts and components from which earth is made, for example, soils, liquid, gas etc. In addition, by practising Major Domains of the Earth Class 6 MCQs, they can learn different types of isolated and non-isolated figures of earth.
After understanding the lesson thoroughly, students can easily answer questions like ‘name the major continents of the Earth Class 6’.
If students want to clear the concept of the geographical structure of the earth, they can easily do it with the help of Major Domains of the Earth Class 6 PDF.
This chapter is best for learning about different oceans, atmospheres, continents, the thickness of the earth etc., Moreover, students can solve various Major Domains of the Earth question answers to understand additional geographical terms as well.
Some Exercises on Major Domains of the Earth Question Answers
Here are some common examples for class 6 students which will help them answer questions like name the major continents of the earth in Class 6:
1. Answer the following questions-
Briefly define the atmosphere.
Differentiate between atmosphere and thermosphere?
Name the major continents of the earth class 6.
What are tectonic plates?
What is carbon dioxide?
2. Fill in the blanks with the correct answer-
Moving air is called _____.
_____ per cent of the earth is covered with water.
Nitrogen comprises _____ per cent of the earth's atmosphere.
Which is the largest continent on earth ______.
Avail Free PDF of Major Domains of the Earth Class 6 MCQs
The best way to prepare for the chapter Major Domains of the Earth is to take the help of worksheets and PDFs. There are various advantages of referring to topic-wise worksheets and PDFs of this chapter. Some of the benefits are listed below:
The PDFs act as sample questions and a summarized version of the chapter, which can be helpful for the students.
It is very easy to download the free PDF from the Vedantu website. Students can easily take the printouts of the PDF as well.
The Major Domains of the Earth Class 6 PDF contain short question answers, true/false and other major exercises that will help students grasp the chapter in a better way.
Lastly, we hope this article clears your major question: name the major continents of the earth Class 6. Our team of experts have created Free downloadable PDFs, chapter explanation, worksheets etc., after conducting deep research on the topic. It will help Class 6 students prepare the chapter easily at their convenience.
FAQs on Class 6 CBSE Social Science Worksheets: Major Domains of the Earth (2025-26)
1. What are the four major domains of the Earth as per the CBSE Class 6 syllabus for 2025-26? Briefly describe each.
The four major domains of the Earth are essential concepts for exams. They are:
- Lithosphere: This is the solid, rocky outer part of the Earth, which includes the continents and the ocean floors. It provides the land we live on.
- Hydrosphere: This domain comprises all the water on Earth's surface, such as oceans, rivers, lakes, and groundwater. It is why Earth is called the 'blue planet'.
- Atmosphere: This is the thin layer of gases that surrounds the Earth, held in place by gravity. It protects us from the sun's harmful rays and contains the air we breathe.
- Biosphere: This is the narrow zone where the lithosphere, hydrosphere, and atmosphere interact to support life. All living organisms exist within this domain.
2. For a 3-mark question, explain why the Earth is often called the 'blue planet' and name the five major oceans.
The Earth is called the blue planet because more than 71% of its surface is covered with water. This vast expanse of water, primarily the oceans, gives our planet a distinct blue appearance when viewed from space. The five major oceans, ranked by size, are:
- The Pacific Ocean
- The Atlantic Ocean
- The Indian Ocean
- The Southern Ocean
- The Arctic Ocean
3. How do the major domains of the Earth interact to make the Biosphere possible? This is a frequently asked conceptual question.
The Biosphere exists only because of the precise interaction between the other three domains. This is a critical concept for understanding ecology. For life to thrive:
- The Lithosphere provides the land, nutrients, and a surface for organisms to live on.
- The Hydrosphere provides the water essential for all life processes.
- The Atmosphere provides necessary gases like oxygen for respiration and carbon dioxide for photosynthesis, while also regulating temperature.
The Biosphere is the unique, narrow zone where land, water, and air meet, creating the perfect conditions to support all forms of life.
4. Explain with two examples how human activities can disturb the natural balance of the Earth's domains.
Human activities can significantly disrupt the delicate balance between Earth's domains, a common topic in HOTS (Higher Order Thinking Skills) questions. Two key examples are:
- Deforestation: Cutting down forests on a large scale (affecting the Lithosphere) releases large amounts of carbon into the Atmosphere, contributing to global warming. It also leads to soil erosion, impacting both land and water systems.
- Industrial Pollution: Burning fossil fuels releases harmful gases into the Atmosphere, causing acid rain which damages the Lithosphere (soil, buildings) and pollutes the Hydrosphere (lakes, rivers), harming all life in the Biosphere.
5. What are the two main divisions of the Earth's surface? Explain the key difference between them.
The two main divisions of the Earth's surface, part of the Lithosphere, are the continents and the ocean basins.
- Continents: These are the vast, continuous landmasses that rise above sea level. Asia, Africa, and North America are examples of continents.
- Ocean Basins: These are the huge depressions on the Earth's surface that are filled with water, forming the major oceans.
The key difference is elevation: continents are the high-standing portions of the Earth's crust, while ocean basins are the low-lying portions.
6. From an exam perspective, what is the importance of the different gases in the Atmosphere?
The composition of the atmosphere is an important topic. While Nitrogen makes up 78% of the air, other gases are vital for life:
- Oxygen (21%): It is essential for the respiration of almost all living beings, including humans and animals. It is the 'breath of life'.
- Carbon Dioxide (approx. 0.03%): Although present in a tiny amount, it is crucial because plants use it to make their food through photosynthesis. It also absorbs heat radiated by the Earth, keeping the planet warm.
7. Why is the Biosphere considered a major domain of the Earth, even though it's described as a 'narrow zone'?
Although the Biosphere is geographically a narrow zone, its importance is immense, which is why it's classified as a major domain. Its significance comes from the fact that it is the only domain that supports life. It's the region where the unique and complex interactions between land (Lithosphere), water (Hydrosphere), and air (Atmosphere) create the necessary conditions for every living organism, from the smallest microbe to the largest animal, to exist and thrive.
