What is Environment?

In the class Ram asked his teacher," What is environment?" "Whatever you see in your surroundings," said the teacher.

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

     How do human beings modify this natural environment?

The car fumes pollute the air, water is collected in a pot, food is served in vessels and land is used to build factories.

Human beings make cars,mills factories and manufacture containers. this is how human beings modify natural environment.

The place ,people things and nature that surround any living organism is called environment. 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 interaction among human beings.

NATURAL ENVIRONMENT

Land , water,air,plants and animals comprise the natural environment. You are familiar with the meaning of lithosphere, hydrosphere,atmosphere and biosphere from your previous class, Let us learn some more facts about these domains.

    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,Valle-ys,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.

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.

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.

  5 June world environment day

                Barter System