CBSE Class 7 Social Science Environment Notes

Download CBSE Class 7 Social Science Environment Notes in PDF format. All Revision notes for Class 7 Social Science have been designed as per the latest syllabus and updated chapters given in your textbook for Social Science in Standard 7. Our teachers have designed these concept notes for the benefit of Grade 7 students. You should use these chapter wise notes for revision on daily basis. These study notes can also be used for learning each chapter and its important and difficult topics or revision just before your exams to help you get better scores in upcoming examinations, You can also use Printable notes for Class 7 Social Science for faster revision of difficult topics and get higher rank. After reading these notes also refer to MCQ questions for Class 7 Social Science given our website

CBSE Class 7 Social Science - Environment. Learning the important concepts is very important for every student to get better marks in examinations. The concepts should be clear which will help in faster learning. The attached concepts made as per NCERT and CBSE pattern will help the student to understand the chapter and score better marks in the examinations.


Q1.What is environment?

The word environment is derived from the French word “Environer/ Environner” meaning “neighborhood”. The place, people, things and nature that surround any living organism is called environment. It is a combination of natural and human made phenomena.

Q2.When is the World Environment Day celebrated?

On 5 June every year World Environment Day is celebrated.

Q3. How is environment useful to us?

Environment is our basic life support system. It provides the air we breathe, the water we drink, the food we eat and the land where we live.

Q4. Name the components of the Natural environment?

Land, water, air, plants and animals comprise the natural environment.

Q5. Differentiate between Biotic and Abiotic components of the environment.

Biotic The world of living organisms. E.g. Plants and Animals Abiotic The world of non-living elements. E.g. land

Q6.What is an eco-system? Explain with an example.

It is a system formed by the interaction of all living organisms with each other and with the physical and chemical factors of the environment in which they live, all linked by transfer of energy and material. There could be an ecosystem of large rain forest, grassland, desert, mountains, lake, river, ocean and even a small pond.

Q7.What is Lithosphere? How is it useful?

Lithosphere is the solid crust or the hard top layer of the earth. It is made up of rocks and minerals and covered by a thin layer of soil. It is an irregular surface with various landforms such as mountains, plateaus, plains, valleys, etc. Landforms are found over the continents and also on the ocean floors. Lithosphere is the domain that provides us forests, grasslands for grazing, land for agriculture and human settlements. It is also a source of mineral wealth.

Q8.What is Hydrosphere? How is it useful?

The domain of water is referred to as Hydrosphere. It comprises various sources of water and different types of water bodies like rivers, lakes, seas, oceans, etc. It is essential for all living organisms.

Q9.What is Atmosphere? How is it useful?

The Atmosphere is the thin layer of air that surrounds the earth. The gravitational force of the earth holds the atmosphere around it. It consists of a number of gases, dust and water vapour.

It protects us from the harmful rays and scorching heat of the sun. The changes in the atmosphere produce changes in the weather and climate.

Q10. What is Biosphere? How is it useful?

Plant and animal kingdom together make Biosphere or the living world. It is a narrow zone of the earth where land, water and air interact with each other to support life.

Q11. How do humans modify the natural environment?

Human beings interact with the environment and modify it according to their need. Early humans adapted themselves to the natural surroundings. They led a simple life and fulfilled their requirements from the nature around them. With time needs grew and became more varied. Humans learn new ways to use and change environment. They learn to grow crops, domesticate animals and lead a settled life. The wheel was invented, surplus food was produced, barter system emerged, trade started and commerce developed. Industrial revolution enabled large scale production.

Transportation became faster. Information revolution made communication easier and speedy across the world.

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