Here we are providing Class 7 Geography Chapter 1 Extra Questions and Answers Environment was designed by subject expert teachers. https://ncertmcq.com/extra-questions-for-class-7-social-science/
Environment Class 7 Extra Questions Geography Chapter 1
Class 7 Geography Chapter 1 Extra Questions And Answers Question 1.
What is environment?
Answer:
All things (place, people, nature, etc.) that surround us together constitu0te our environment.
Class 7 Geography Chapter 1 Extra Questions Question 2.
Why is our environment changing?
Answer:
The needs of human beings are changing day by day. To cope with these needs, they bring about changes in their surroundings. These. changes lead to an overall change in the environment.
Class 7 Geography Chapter 1 Questions And Answers Question 3.
What are the two types of environment?
Answer:
The two types of environment are –
- Natural environment,
- Human-made environment.
Class 7 Geography Chapter 1 Short Questions And Answers Question 4.
What is meant by natural environment?
Answer:
All those things which are naturally existing around us are together called natural environment.
Ncert Class 7 Geography Chapter 1 Extra Questions Question 5.
Which two types of conditions make our natural environment? Give examples.
Answer:
The two types of conditions that constitute our natural environment are :
- Biotic conditions – All living (plants and animals) forms.
- Abiotic conditions – All naturally existing non-living things, e.g., water, air soil, mineral, etc.
Chapter 1 Geography Class 7 Extra Questions Question 6.
What do you mean by human environment?
Answer:
Human environment refers to all activities, creations and interactions among human beings.
Class 7 Geography Chapter 1 Worksheet With Answers Question 7.
What are the components of environment?
Answer:
Following are the components of environment :
- Natural Components,
- Human-made components,
- Activities and interactions of humans beings.
Extra Questions For Class 7 Geography Chapter 1 Question 8.
Give examples of natural components of environment.
Answer:
Land (lithosphere), air (atmosphere), water (hydrosphere) and living things (biosphere) are examples of the natural components of environment.
Geography Class 7 Chapter 1 Extra Questions Question 9.
How is environment important to us? Explain.
Answer:
It is the environment which provides us with basic life support system. It is important to us in many ways –
- It provides the water we drink.
- It provides the air we breathe.
- It provides land for making shelter.
- It provides the food we eat.
Class 7 Geography Ch 1 Extra Questions Question 10.
Give examples of man-made components of environment.
Answer:
Buildings, parks, bridges, roads, industries, monuments, etc. are examples of man-made components of environment.
Geography Chapter 1 Class 7 Extra Questions Question 11.
How are humans and their activities and interactions are the components of environment? Explain.
Answer:
As individuals, humans (as living beings) are a part of the natural components of environment. In addition to it, they interact among themselves in a number of ways. For example, they make family and community like social institutions. Also, they form educational, economic and political situations. All these things surround and affect them. So, it can be said that humans and their activities and interactions are the components of environment.
Extra Questions On Our Environment Class 7 Question 12.
What are the major domains of the environment?
Answer:
Lithosphere, hydrosphere, atmosphere and biosphere are the major domains of the environment.
Environment Class 7 Questions And Answers Question 13.
What is lithosphere?
Answer:
Lithosphere is the hard top layer of the earth.
Class 7 Chapter 1 Geography Extra Questions Question 14.
What constitutes the lithosphere?
Answer:
Minerals, rocks and a thin layer of soil together constitute the lithosphere.
Extra Questions Of Environment Class 7 Question 15.
Name a few major landforms. Where are they found?
Answer:
- Mountains, plateaus, plains, valleys, etc. are a few major landforms.
- These are found over the continents and on the ocean floors.
Question 16.
What is meant by hydrosphere?
Answer:
The various sources of water and water bodies, like rivers, ponds, lakes, seas, oceans, etc., are together referred to as hydrospheres.
Question 17.
What is atmosphere? How is it constituted?
Answer:
- The thin layer of air surrounding the earth is called atmosphere.
- It consists of a number of gases, dust particles and water vapour.
Question 18.
What holds the atmosphere around the earth?
Answer:
The gravitational force of the earth.
Question 19.
How does change in the atmosphere affect us?
Answer:
When changed, it affects us by bringing about unfavourable changes’ in the weather and climatic conditions.
Question 20.
How is atmosphere important to us?
Answer:
- It protects us from the harmful rays and extreme heat of the sun.
- It has oxygen as its constituent that the living beings breathe in.
- It has carbon dioxide which the plants make use of for preparing their food.
Question 21.
How is lithosphere important to us?
Answer:
Lithosphere is important to us in the following ways –
(i) It provides us forests and grasslands for grazing.
(ii) It provides land for agriculture and human settlement.
(iii) It is the source of minerals.
Answer:
(i) The water we use in our home and school comes from the water treatment plants which receive it from rivers for cleaning. Rivers get water from rain.
(ii) Following are the different uses of water in daily life –
- For drinking.
- For washing clothes, utensils, vehicles, etc.
- For bathing and cooking food.
- For watering garden plants and irrigating crops.
Yes. I have seen females at municipality taps collecting water. Very often they fight with each other and the water overflows from the bucket about which they are least bothered. In such cases, the people standing in queue also suffer.
Question 22.
What is biosphere? How is it made up?
Answer:
- A narrow zone on the earth where land, air and water support life by interacting with each other is called biosphere.
- It is made up of all living things, i.e., plants and animals.
Question 23.
What is an ecosystem?
Answer:
The system formed by the interaction between living organisms themselves and between living organisms and their surroundings is called an ecosystem.
Question 24.
In an ecosystem, how are the organisms themselves and their surroundings interlinked?
Answer:
They are interlinked by the transfer of energy and materials.
Question 25.
What do you mean by barter system?
Answer:
- It is a trade by exchange of goods without the use of money.
- This system was an integral part of the life of ancient day people to meet their needs.
Question 26.
Give a few examples of ecosystems.
Answer:
Following are a few examples of ecosystems:
- Rain forest ecosystem
- Grassland desert ecosystem
- Lake ecosystem
- River ecosystem
- Ocean ecosystem
- Pond ecosystem.
Question 27.
Give some ways in which human beings learnt to use and change the environment.
Answer:
Following are some ways in which humans learnt to use and change the environment:
- They learnt to grow crops and domesticate animals.
- They led a settled life.
- They invented wheel.
- They developed trade and commerce and brought about industrial revolution.
- They developed means of transport and communication.
These all could happen by making use of and bringing about changes in the environment.
Multiple Choice Questions (MCQs)
1. Which one of the following statements is true about the environment?
(a) The world of non-living elements i.e. land, etc.
(b) The world of living organìsms i.e. plants, animals, insects, etc.
(c) The place, people, things and nature that surround any living organism
(d) The world of human-made things, like buildings, parks, roads, etc.
Answer:
(c) The place, people, things and nature that surround any living organism.
2. Which one of the following is an example of the biotic resources?
(a) Land
(b) Roads
(c)Plants
(d)Railways
Answer:
(b) Roads.
3. Which one of the following is different from the other three aspects, with reference to the abiotic resources?
(a) Land
(b) Plants
(c) Animals
(d) Insects.
Answer:
(a) Land.
4. Which one of the following terms is used for the solid crust or the hard top layer of the earth?
(a) Core
(b) Mantle
(c) Atmosphere
(d) Lithosphere.
Answer:
(d) Lithosphere.
5. Lithosphere is made up of which one of the following components?
(a) Lakes and rivers
(b) Rocks and minerals
(c) Various gases
(d) Oceans and seas.
Answer:
(b) Rocks and minerals.
6. The Lithosphere is also a source of;
(a) water
(b) gases
(c) minerals
(d) underground water.
Answer:
(c) minerals.
7. Which one of the following statements truly defines the word hydrosphere?
(a) The domain of water
(b) The thin layer of air
(c) Solid crust of the earth
(d) The sphere of non-living elements.
Answer:
(a) The domain of water.
8. Which one of the following terms is used for the thin layer of air that surrounds the earth?
(a) Lithosphere
(b) Hydrosphere
(c) Atmosphere
(d) Biosphere.
Answer:
(c) Atmosphere.
9. Which one of the following holds the atmosphere around the earth?
(a) Gravitational force of the moon.
(b) Gravitational force of the earth.
(c) Gravitational force of the sun.
(d) Gravitational force of the sun, moon and earth.
Answer:
(b) Gravitational force of the earth.
10. The atmosphere of the earth protects us from………………… .
(a) evaporation and condensation
(b) sun rays
(c) precipitation and hails
(d) harmful UV rays and scorching heat.
Answer:
(d) harmful UV rays and scorching heat.
11. The world environment day is celebrated on.
(a) 5 June
(b) 5 July
(c) 5 August
(d) 5 September.
Answer:
(a) 5 June.
12. The weather and climate are changed due to which one of the following reasons?
(a) Change in lithosphere
(b) Change in hydrosphere
(c) Change in atmosphere
(d) Change in biosphere.
Answer:
(c) Change in atmosphere.
13. Which one of the following statements is true about biosphere?
(a) It consists of a number of gases, dust and water vapour.
(b) It consist’-of plant kingdom of the earth.
(c) Large domain of water.
(d) It is a narrow zone of the earth where land, water and air interact with each other.
Answer:
(d) It is a narrow zone of the earth where land, water and air interact with each other.
14. Which one of the following terms is used for the trade-in which goods are exchanged without the use of money?
(a) International trade
(b) Barter system
(c) National trade
(d) Trade of various goods.
Answer:
(b) Barter system.
15. Which one of the following system is formed by the interaction of all living organisms with each other?
(a) Ecosystem
(b) Barter system
(c) Import system
(d) Export system.
Answer:
(a) Ecosystem.
16. Which one of the following can interact with the environment and modify it according to their need?
(a) Animals
(b) Plants
(c) Human beings
(d) Oceans.
Answer:
(c) Human beings.
17. Which one of the following is a major threat to environment?
(a) Increasing animals
(b) Increasing glaciers
(c) Increasing plants
(d) Increasing population.
Answer:
(d) Increasing population.
18. Which one of the following is the human component of environment?
(a) Road
(b) Family
(c) Monuments
(d) Water.
Answer:
(b) Family.
19. Which one of the following is different from the other three with reference to its natural component?
(a) Air
(b) Religion
(c) Community
(d) Bridges.
Answer:
(a) Air.
20. Which one of the following is an example of the human ¡nade component of environment?
(a) Rocks
(b) Buildings
(c) Forests
(d) Living things.
Answer:
(b) Buildings.