Environment - Class 7 Geography - Extra Questions

Very Short Answer Type Question.
What is 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.


Very Short Answer Type Question.
Why is our environment changing?

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


Very Short Answer Type Question.
Distinguish between biotic and abiotic environment with examples.

The world of living organisms is known as biotic environment.
Example: plants and animals
The world of non-living element is known as abiotic environment. Example: land.


Answer the following question briefly.
Give four examples of human-made environment.

Four examples of human-made environment-buildings, parks, bridges and roads.


Activity.
Imagine an ideal environment where you would love to live. Draw the picture of your ideal environment.

Students are expected to do this activity themselves. 


Very Short Answer Type Question.
How is 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.


Answer the following question briefly.
What is an ecosystem?

All plants, animals and human beings depend on their immediate surroundings. They are also interdependent on each other. This relation between the living organisms as well as the relation between the organism and their surroundings form an ecosystem.


Answer the following question briefly.
Which are the major components of the environment?

The major components of the environment are - natural (land, air, water, living things), man-made (buildings, parks, bridges, roads, industries, monuments, etc) and humans (individual, family, community, religion, educational, economic, etc).


Give reasons:
(a) Man modifies his environment
(b) Plants and animals depend on each other.

a) Man modifies his environment to fulfil his needs and make his life comfortable. He also has modified his environment to adapt himself to the natural surroundings.
(b) Plants and animals depend on each other for their own sake. Plants release oxygen that animals breathe and absorb carbon dioxide that animals release.


Long Answer Type Question.
How have human beings adapted to the environment to fulfil their needs?

Human beings from the early times have been interacting with the environment and modifying it according to their needs. Early humans adapted themselves to the natural surrounds. They led a simple life and fulfilled their requirements from the nature around them. But their needs kept on increasing. They became varied also. To fulfil these varied needs, humans learnt to grow crops, tamed animals and began a settled life. The wheel was invented, surplus food was produced, barter system emerged, trade started and commerce developed. Industrial revolution made possible large scale production. By and by transportation became faster. Information revolution made communication easier and speedy across the world. In this way human beings adapted to the environment in order to fulfil their needs.


Short Answer Type Question.
How do human beings modify natural environment?

The needs of human beings are increasing day and day. Hence, they modify natural environment to fulfil these needs. Sometimes they even destroy their environment.
Human beings have made cars for their convenience. These cars release fumes which pollute the air. They have established factories on land. These factories manufacture various items such as containers. This is how they modify natural environment.


Long Answer Type Question.
Give an account of various domains of the environment.

Various domains of the environment are:
$$1$$. Lithosphere
$$2$$. Atmosphere
$$3$$. Hydrosphere
$$4$$. Biosphere

Lithosphere - It 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 provides us forests, grasslands, and land. It is a source of mineral wealth.
Atmosphere - It 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 harmful rays and scorching heat of the sun. It consists of various gases, dust, and water vapor.
Hydrosphere - It refers to various water bodies such as rivers, lakes, seas, oceans, etc. that exist on the earth.
Biosphere - Biosphere or the living world is comprised of plant and animal kingdom. It is a narrow zone of the earth where land, water, and air interact with each other to support life.


Class 7 Geography Extra Questions