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CBSE Important Questions for Class 7 Social Science Our Environment - 2025-26

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Our Environment Class 7 Extra Questions and Answers Free PDF Download

CBSE Class 7 Social Science (Our Environment) Important Questions help students focus on key topics and concepts from their syllabus. These questions cover essential areas that frequently appear in exams, making it easier for students to revise and prepare effectively. By practising these questions, students can enhance their understanding of environmental issues and build confidence for their exams. Vedantu provides well-organised important questions that ensure thorough revision and a solid grasp of the subject. Use Class 7 Important Questions to improve learning and get ready for the upcoming exams.

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Download the FREE CBSE Class 7 Social Science (Our Environment) Important Questions PDF from Vedantu, aligned with the latest CBSE Class 7 Social Science syllabus. These important questions support effective revision and enrich the learning experience, ensuring a better understanding of key topics for exams.


CBSE Class 7 Social Science Important Questions for All Chapters

CBSE Class 7 Social Science Important Questions and Answers include topics from Our Environment, helping with thorough preparation and easier revision.


10 Most Important Questions From Class 7 Social Science (Our Environment) Chapters

Below are 10 Important Questions from Class 7 Social Science (Our Environment) chapters that are Important for preparing well and understanding concepts easily.


1. What is the environment, and what are its components? 

Ans: The environment refers to the surroundings in which living and non-living things exist. It comprises two main components: biotic factors, which include all living organisms (plants, animals, and humans), and abiotic factors, which include non-living elements like air, water, soil, and sunlight. These components interact with each other, forming ecosystems that support life and influence the Earth's processes.


2. What are the different layers of the Earth?

Ans: The Earth is made up of three primary layers: the crust, the mantle, and the core. The crust is the thin outer layer where we live and contains landforms and bodies of water. Below the crust is the mantle, composed of semi-solid rock that can flow slowly over time. The core, located at the centre of the Earth, consists of a solid inner core and a liquid outer core, primarily made of iron and nickel, contributing to the Earth's magnetic field.


3. How do natural forces change the Earth's surface? 

Ans: Natural forces such as erosion, weathering, and volcanic activity play significant roles in shaping the Earth's surface. Erosion involves the removal and transport of soil and rock by wind, water, or ice. Weathering breaks down rocks into smaller particles through physical and chemical processes. Volcanic eruptions can create new landforms and change existing landscapes by depositing lava and ash, illustrating the dynamic nature of the Earth's surface.


4. What is the composition of air? 

Ans: Air is a mixture of gases that surrounds the Earth. Its primary components are nitrogen (about 78%) and oxygen (about 21%). Other gases, such as argon, carbon dioxide, and water vapour, make up a small percentage. The composition of air is crucial for supporting life: oxygen is essential for respiration, while carbon dioxide is vital for photosynthesis in plants, thus maintaining the balance in the ecosystem.


5. Why is water important for life? 

Ans: Water is essential for all living organisms and plays a critical role in various biological processes. It is required for drinking, sanitation, and agriculture, and it regulates body temperature through sweating and respiration. Water also provides habitats for aquatic life and is involved in nutrient transport within organisms. The availability of clean water is vital for health, food production, and sustaining ecosystems.


6. How do humans interact with tropical and subtropical regions? 

Ans: Humans interact with tropical and subtropical regions through agriculture, trade, and resource utilization. These regions are often rich in biodiversity and resources, leading to practices like farming (crops such as rice and tropical fruits) and logging for timber. However, such interactions can result in deforestation and habitat loss, emphasising the need for sustainable practices to balance economic development with environmental conservation.


7. What are the characteristics of life in deserts? 

Ans: Life in deserts is adapted to extreme temperatures and scarce water resources. Plants like cacti have thick skins and spines to minimise water loss and store moisture. Animals such as camels, reptiles, and insects have adaptations that allow them to conserve water and tolerate high temperatures. Desert communities often rely on specific behaviours and adaptations for survival, demonstrating resilience in harsh conditions.


8. What are the causes of environmental degradation? 

Ans: Environmental degradation is caused by various human activities, including deforestation, pollution, urbanization, and over-exploitation of natural resources. Deforestation leads to habitat loss and increased carbon emissions, while pollution from industries and vehicles contaminates air, water, and soil. Overuse of resources, such as water and minerals, strains ecosystems and disrupts ecological balance, emphasising the need for sustainable practices.


9. How do humans impact the water cycle? 

Ans: Human activities significantly impact the water cycle through urbanisation, deforestation, and pollution. Urbanisation increases surface runoff and reduces groundwater recharge, while deforestation disrupts natural water absorption. Pollution from industries and agriculture contaminates water bodies, affecting aquatic ecosystems and drinking water sources. Understanding these impacts is essential for managing water resources sustainably.


10. What role do forests play in maintaining ecological balance? 

Ans: Forests play a crucial role in maintaining ecological balance by providing habitats for diverse wildlife, producing oxygen through photosynthesis, and absorbing carbon dioxide, which helps mitigate climate change. They also prevent soil erosion, conserve water, and regulate temperature. Additionally, forests offer resources like timber, food, and medicinal plants, highlighting their importance for both ecosystems and human well-being.


How do Social Science Important Questions Class 7 Help you with Exams?

  • Important questions for Class 7 Social Science focus on key topics and concepts, ensuring students study the most relevant material for exams.

  • Practising these questions enhances understanding of historical events, geographical concepts, and social issues.

  • Engaging with important questions improves memory retention, as students actively recall and summarise information.

  • Answering these questions helps develop writing skills, enabling clearer articulation of thoughts in exams.

  • They familiarise students with the types of questions that may appear in exams, reducing anxiety and improving confidence.

  • Important questions encourage critical thinking and analysis, allowing students to interpret and apply knowledge effectively.

  • Working through these questions helps identify strengths and weaknesses, guiding focused study efforts before the exam.

  • They promote collaborative learning when discussed in study groups, enhancing comprehension through peer interaction.

  • Practising under timed conditions improves time management skills, ensuring completion of exam questions within the allotted time.


CBSE Class 7 Social Science (Our Environment) Important Questions are valuable resources for students preparing for exams. They help students focus on essential topics and enhance their understanding of environmental issues, human interactions, and geography. By practising these questions, students can build confidence and improve their writing skills. Additionally, these questions provide a clear overview of what to expect in exams, making revision more effective. Overall, engaging with important questions supports students in achieving success in their studies and feeling well-prepared for their exams.


Other Bookwise Important Questions Links for Class 7 Social Science


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FAQs on CBSE Important Questions for Class 7 Social Science Our Environment - 2025-26

1. What are the major components of the environment as per the CBSE Class 7 syllabus for 2025-26?

The environment consists of two major components that are crucial for exams:

  • Natural Environment: This includes all things that exist naturally. It is further divided into biotic (living organisms like plants and animals) and abiotic (non-living elements like land, air, and water) components.

  • Human-Made Environment: This comprises creations by human beings to meet their needs, such as buildings, parks, bridges, roads, industries, and monuments.

2. What is an ecosystem? What are its key components?

An ecosystem is a system formed by the interaction of all living organisms with each other and with the physical and chemical factors of their environment, all linked by the transfer of energy. Its key components are:

  • Biotic Components: These are the living elements of an ecosystem, such as plants, animals, fungi, and other microorganisms.

  • Abiotic Components: These are the non-living chemical and physical parts of the environment, like sunlight, air, water, temperature, and soil.

3. Explain the four major domains of the Earth. Why are they important?

The four major domains of the Earth are fundamental concepts for exams:

  • Lithosphere: The solid crust or hard top layer of the Earth. It provides us with land for living, farming, and forests.

  • Hydrosphere: The domain of water, comprising various sources like rivers, lakes, seas, and oceans. It is essential for all living organisms.

  • Atmosphere: The thin layer of air surrounding the Earth. It protects us from the sun's harmful rays and regulates temperature.

  • Biosphere: The narrow zone where the lithosphere, hydrosphere, and atmosphere interact to support life. It is the domain that contains all life on Earth.

4. How do human beings modify the natural environment? This is an expected question for 3 marks.

Human beings interact with the environment and modify it according to their needs. Key modifications include:

  • Agriculture: Humans clear land to grow crops and domesticate animals, leading to a settled life.

  • Industry: The Industrial Revolution led to large-scale manufacturing, which required extracting raw materials and often resulted in pollution.

  • Infrastructure: Humans build roads, dams, and cities, which significantly alter landscapes and water flows.

  • Trade: Early humans developed the barter system, and later, currency-based economies emerged, increasing resource consumption and transportation.

5. Why is the interaction between biotic and abiotic components considered crucial for any ecosystem?

The interaction between biotic (living) and abiotic (non-living) components is crucial because it ensures the flow of energy and the cycling of essential nutrients. For example, plants (biotic) use sunlight, water, and soil (abiotic) to produce food. Animals (biotic) consume these plants. When organisms die, decomposers return nutrients to the abiotic environment. This continuous interaction is what maintains the sustainability and balance of the ecosystem, making life possible.

6. What kind of important questions can a student expect from the Class 7 Geography chapter 'Our Environment' for the 2025-26 exams?

From the chapter 'Our Environment', students can expect a variety of questions:

  • 1-mark questions: Focus on definitions of key terms like 'Lithosphere', 'Ecosystem', or 'Barter system'.

  • 3-mark questions: Require short explanations, such as describing the components of the environment or distinguishing between natural and human-made environments.

  • 5-mark questions: May ask for detailed explanations, like how humans modify the environment or the significance of the four domains of the Earth.

7. Explain why a perfect balance between the natural and human environment is necessary.

A perfect balance between the natural and human environment is essential for the long-term survival of all species, including humans. The natural environment provides essential resources like clean air, water, and food. Human activities must be sustainable to avoid depleting these resources or causing irreversible damage like pollution and climate change. An imbalance threatens our health, food security, and overall well-being, highlighting the need for humans to use resources judiciously and live in harmony with nature.

8. What was the barter system, and what was its major limitation?

The barter system was an early form of trade where goods were exchanged directly for other goods without the use of money. Its major limitation was the need for a 'double coincidence of wants'. This means that for an exchange to happen, two individuals must each have a good that the other person wants. This made trade inefficient and difficult, which is why modern societies use money as a universal medium of exchange.

9. Compare and contrast the key features of the Lithosphere and the Atmosphere.

The Lithosphere and Atmosphere are two distinct domains of the Earth with different features:

  • Composition: The Lithosphere is the solid, rocky crust of the Earth, whereas the Atmosphere is a gaseous layer composed mainly of nitrogen and oxygen.

  • State: The Lithosphere is in a solid state, providing a surface for life. The Atmosphere is in a gaseous state, surrounding the planet.

  • Function for Life: The Lithosphere provides habitat and minerals. The Atmosphere provides essential gases for breathing (oxygen) and photosynthesis (carbon dioxide) and protects the planet from harmful solar radiation.