Environment: Geography Class 7 Chapter-1

Key Features of NCERT Material for Class 7 Geography Chapter 1 – Environment

Quick revision notes

In Chapter 1 of Class 8 NCERT book: Environment you must have learnt about Environment on Earth  in different- different places.

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.

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.

Environment 

Nature, place, individuals, things, and so on that encompass the living creatures make the environment. The environment can extensively be arranged into the regular and human environment. It is a blend of both normal just as man-made marvels. 

The common habitat includes biotic (plants and creatures) and abiotic-conditions(land, water, air, and so forth.), though the man-caused marvels to contain the exercises and cooperations among individuals (streets, spans, and so on.). 

Nature Environment

• Land, water, air, plants and creatures contain the regular habitat. 
• Lithosphere, air, hydrosphere and biosphere are the four spaces of the regular habitat. 
• The lithosphere is the strong hull or the furthest layer of the earth where we live. It contains landforms like mountains, levels, fields and valleys. 
• The hydrosphere is the space of water. It involves water bodies like waterways, lakes, oceans, seas, and so on. 
• The air is the slender layer of air that encompasses the earth. It shields us from the destructive beams and singing warmth of the sun. 
• The biosphere is a thin zone of the earth where land, water and air interface with one another to help life. 

What is Ecosystem? 

• The connection between the living beings just as the connection between the creatures and their encompassing structure the biological system. 
• There could be an environment of enormous rainforest, field, desert, mountains, lake, waterway, sea and even a little lake. 

Human Environment 

• People interface with the environment and adjust it as indicated by their necessities. 
• Early people adjusted to their normal environmental factors. 
• With time, people figured out how to develop new things, train creatures and have a settled existence. 
• The modern insurgency, transportation and data transformation made correspondence simpler and fast over the world. 
• Man is obliterating the environment through deforestation, industrialisation, and so on. 

The environment in our fundamental life emotionally supportive network. It gives the air we inhale, the water we drink, the food we eat and where we live. In this way, the environment is the most significant part of our life. 

The regular habitat comprises of land, water, air, plants and creatures. It alludes to both biotic and abiotic conditions existing on the earth. 

While biotic alludes to the universe of living beings, for example, plants and creatures, abiotic alludes to the universe of non-living components, for example, land. 

The human environment alludes to the exercises, manifestations and connections among people. 

Areas of environment—Lithosphere, hydrosphere, air and biosphere. 

The lithosphere is the strong segment of the earth where we live. The space gives us woods, meadows for eating, land for horticulture and human settlements. It is the place we discover a few minerals. 

Hydrosphere alludes to the water bodies like waterways, lakes, oceans, seas, and so forth that exist on the earth. 

The environment is the meager layer of air that encompasses the earth. It shields us from the hurtful beams and looking through warmth of the Sun. It comprises of gases, residue and water fume. 

Biosphere or the living scene is included plant and creature life. It is a thin zone of the earth where land, water and air interface with one another to help life. 

The connection between the living creatures just as the connection between the living beings and their environmental factors structure a biological system. 

A biological system can be found in lakes, mountains, seas, lake, and so forth. 

People alter the common habitat according to their requirements. 

Environment: The spot, individuals, things and nature that encompass any living creature is known as the environment. 

Biotic: It alludes to the universe of living beings, for example, plants and creatures. 

Abiotic: It alludes to the universe of non-living components, for example, land. 

Lithosphere: It is the strong outside or the hard top layer of the earth. 

Hydrosphere: It alludes to the water bodies like streams, lakes, oceans, seas, and so on the earth. 

Climate: It is the slender layer of air that encompasses the earth. 

Environment: The connection between the living beings, just as the connection between the creatures and their environmental factors, structure a biological system. 

Deal framework: An exchange which merchandise are traded without the utilization of cash.