# NCERT Notes and Solutions for Class 7 Geography Chapter -1 Environment

## Environment

### Environment –

• It is derived from the French word Environner having meaning neighbourhood.
• The environment is basic life support which provides the air, the water, the food, and the land.
• We can define the environment as surrounding of any living organism which includes biotic and non- biotic components.

#### Biotic and Non- biotic components-

• Biotic and non-biotic components are the natural environment. Here Biotic components refer to the living organism. Example- Plants, Animals.
• Whereas Abiotic components refer to non-living elements of nature. Example- Land

#### (i) Natural Environment

(iii) Human

(i) Natural Environment –

• The natural environment includes land, water, air, plants and animals.  Various domains of the natural environment are –
(A) Lithosphere -
• It is the hard and solid top-most layer of the earth. It provides us forests, farms, grassland and land for human settlement. It is covered with soil, minerals and rocks.
• It includes landforms such as mountains, plateaus, plains etc.
(B) HYDROSPHERE -
• It comprises of all domains of water and water bodies like lake, river, seas, oceans etc.
(C) Atmosphere -
• It is a thin layer of air that surrounds the earth.
• It protects us from the harmful rays of the sun.
• It consists of gases, dust and water vapour.
(D) Biosphere -
• It is a narrow zone of the earth where land, water and air interact with each other to support life.

The artificial environment which is made by a human. This includes-

1. Buildings
2. Park
3. Bridges
5. Industries
6. Monuments

#### (iii) Human Environment –

Every human has the tendency to adopt the natural environment as well as the surrounding. There must be a perfect balance between the natural and human environment. The human environment includes the following domains-

1. Individual
2. Family
3. Community
4. Religion
5. Educational
6. Economic
7. Political situations

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