NCERT Solutions Class 7th Geography Social Science Chapter – 1 Environment Notes

Chapter -1 Environment
Last Doubt

NCERT Solutions Class 7th Geography Social Science Chapter – 1 Environment 

TextbookNCERT
Class 7th
Subject (Geography)Social Science
ChapterChapter – 1
Chapter NameEnvironment
CategoryClass 7th Social Science Geography
Medium English
SourceLast Doubt
NCERT Solutions Class 7th Geography Social Science Chapter -1 Environment Notes Why environment is important? What is environment introduction? What are the 3 types of environment? What is nature 10 lines? What are 5 benefits of environment? How can we save our environment? What are the 2 main types of environment? What is human environment? What nature gives us? What factors affect the environment? What are the characteristics of environment? What is type of environment? How is environment formed? How can we reduce the pollution? What is a type of pollution? How can we reduce environment pollution? What is the scope of environment? What are the 4 types of environment? What is environment best answer?

NCERT Solutions Class 7th Geography Social Science Chapter –1 Environment 

Chapter – 1

Environment

Notes

Natural Environment

Natural Environment comprises land, water, air, plants and animals. 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. Lithosphere is the domain that provides forests, grasslands for grazing, land for agriculture and human settlements. It is also a source of mineral wealth.
• 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.
• The atmosphere is the thin layer of air that surrounds the earth. The gravitational force of the earth holds the atmosphere around it. It protects us from the harmful rays and scorching heat of the sun. It consists of a number of gases, dust and water vapour. The changes in the atmosphere produce changes in the weather and climate.
• 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.

Human Environment

Human beings interact with the environment and modify it according to their needs. Earlier, humans adapted themselves according to their natural surroundings and fulfilled their requirements from the nature around them. As time went by, needs became more varied. Humans learned to grow crops, domesticated animals and led 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.

Overview

Environment means the place, people, things and nature that surround any living organism. It is a combination of natural and human-made phenomena. While the natural environment refers to both biotic and abiotic conditions existing on the earth, human-environment reveals the activities, creations and interactions among human beings

What is ecosystem?

An ecosystem is a large community of living organisms such as plants, animals and microbes in a particular area. The living and physical components are linked together through nutrient cycles and energy flows. There could be an ecosystem of large rain forest, grassland, desert, mountains, lake, river, ocean and even a small pond.

Human Environment

Human beings interact with the environment and modify it according to their needs. Earlier, humans adapted themselves according to their natural surroundings and fulfilled their requirements from the nature around them. As time went by, needs became more varied. Humans learned to grow crops, domesticated animals and led 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.

What are the different types of landforms present in our environment?

Mountains, hills, plateaus and plains are the four major types of landforms which are majorly present in our environment.

What is ‘Lithosphere’?

The Lithosphere is the rocky outer part of the Earth. It is made up of the brittle crust and the top part of the upper mantle.

Where is the ‘Biosphere’ present?

The Biosphere makes up the portion of the Earth where life exists.

Question 1. What are the basic components of the natural environment?

The basic components of the natural environment are—land, water, air, plants and animals.

Question 2. What does the lithosphere provide us?

Lithosphere provides us forests, grasslands for grazing land for agriculture and human settlements. It is a rich source of minerals.

Question 3. Name different types of water bodies.

Rivers, lakes, seas, oceans, etc.

Question 4. How is the atmosphere important for us?

The atmosphere protects us from the harmful rays and scorching heat of the sun.

Question 5. What do you see in the deserts? Name some animals.

We see camels, snakes, lizards, and insects.

Question 6. What is the barter system?

The barter system is a method of trade in which goods are exchanged without the use of money.

Question 7. Why is our environment changing?

Our environment is changing because our needs are increasing day by day. To fulfill these needs we often don’t think about the environment and start modifying it.

Question 8. What is the environment?

Everything that we see in our surroundings forms environment. It is our basic life support system. It provides us air, water, food, and land—the basic needs of our life.

Question 9. How is the environment important for us?

It is important for us because it is the provider of air, water, food, and land— the basic necessities of life.

Question 10. Distinguish between the biotic and abiotic environments with examples.

The world of living organisms is known as a biotic environment. Example: plants and animals. The world of the non-living element is known as the abiotic environment. Example: land.
NCERT Solution Class 7th Geography All Chapters Notes
Chapter – 1 Environment
Chapter – 2 Inside Our Earth
Chapter – 3 Our Changing Earth
Chapter – 4 Air
Chapter – 5 Water
Chapter – 6 Human-Environment Interactions – The Tropical and the Subtropical Region
Chapter – 7 Life in the Deserts
NCERT Solution Class 7th Geography All Chapters Question Answer
Chapter – 1 Environment
Chapter – 2 Inside Our Earth
Chapter – 3 Our Changing Earth
Chapter – 4 Air
Chapter – 5 Water
Chapter – 6 Human-Environment Interactions – The Tropical and the Subtropical Region
Chapter – 7 Life in the Deserts
NCERT Solution Class 7th Geography All Chapters MCQ
Chapter – 1 Environment
Chapter – 2 Inside Our Earth
Chapter – 3 Our Changing Earth
Chapter – 4 Air
Chapter – 5 Water
Chapter – 6 Human-Environment Interactions – The Tropical and the Subtropical Region
Chapter – 7 Life in the Deserts

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