Class 7 Chapter 1. Environment NCERT Exercise: NCERT Book Solutions
Class 7 chapter Chapter 1. Environment Important key points for quick revision for board exams, ssc and upsc exams preparaion.
NCERT Solutions
All chapters of ncert books Geography Chapter 1. Environment NCERT Exercise is solved by exercise and chapterwise for class 7 with questions answers also with chapter review sections which helps the students who preparing for UPSC and other competitive exams and entrance exams.
Class 7 chapter Chapter 1. Environment Important key points for quick revision for board exams, ssc and upsc exams preparaion. - Chapter 1. Environment - NCERT Exercise: NCERT Book Solutions for class 7th. All solutions and extra or additional solved questions for Chapter 1. Environment : NCERT Exercise Geography class 7th:English Medium NCERT Book Solutions. Class 7 chapter Chapter 1. Environment Important key points for quick revision for board exams, ssc and upsc exams preparaion.
Chapter 1. Environment : NCERT Exercise Geography class 7th:English Medium NCERT Book Solutions
Class 7 chapter Chapter 1. Environment Important key points for quick revision for board exams, ssc and upsc exams preparaion. - Chapter 1. Environment - NCERT Exercise: NCERT Book Solutions for class 7th. All solutions and extra or additional solved questions for Chapter 1. Environment : NCERT Exercise Geography class 7th:English Medium NCERT Book Solutions.
Class 7 Chapter 1. Environment NCERT Exercise: NCERT Book Solutions
NCERT Books Subjects for class 7th Hindi Medium
Chapter 1. Environment
Class 7 chapter Chapter 1. Environment Important key points for quick revision for board exams, ssc and upsc exams preparaion.
NCERT Exercise
Exercise - Question:
Que: Answer the following questions.
(i) What is an ecosystem?
(ii) What do you mean by natural environment?
(iii) Which are the major components of the environment?
(iv) Give four examples of human made environment.
(v) What is lithosphere?
(vi) Which are the two major components of biotic environment?
(vii) What is biosphere?
Ans:
1. 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.
2. The natural environment consists of land, water, air, plants and animals. Thus, the natural environment refers to both biotic (plants and animals) and abiotic (land) conditions that exist on the earth.
3. The major components of the environment are—natural (land, air, water, living things), human-made (buildings, parks, bridges, roads, industries, monuments, etc.), and humans (individual, family, community, religion, educational, economic, etc).
4. Four examples of human-made environments—buildings, parks, bridges, and roads.
5. The 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.
6. Plants and animals are the two major components of a biotic environment,
7. The biosphere is a narrow zone of the earth where land, water, and air interact with each other to support life. Thus, plant and animal kingdom together make biosphere, ie., the living world.
Q2. Tick the correct answer.
(i) Which is not a natural ecosystem?
(a) Desert
(b) Aquarium
(c) Forest
(ii) Which is not a component of human environment?
(a) Land
(b) Religion
(c) Community
(iii) Which is a human made environment?
(a) Mountain
(b) Sea
(c) Road
(iv) Which is a threat to environment?
(a) Growing plant
(b) Growing population
(c) Growing crops
Ans:
(i) (b) Aquarium.
(ii) (a) Land
(iii) (c) Road
(iv) (b) Growing population.
Que: Match the following.
(i) Biosphere (a) blanket of air which surrounds the earth
(ii) Atmosphere (b) domain of water
(iii) Hydrosphere (c) gravitational force of the earth
(iv) Environment (d) our surroundings
(e) narrow zone where land water and air interact
Ans:
Column I | Column II |
(i) Biosphere | (d) our surronding |
(ii) Atmosphere | (a) blanket of air which surrounds the earth |
(iii) Hydrosphere | (b) domain of water |
(iv) Enviorment | (c) gravitational force of earth |
Que: Give reasons.
(i) Man modifies his environment
(ii) Plants and animals depend on each other
Ans:
(i) Man modifies his enviorment to meet his various needs. For example: he clears forests for obtaining land foragriculturew and for making shelter. He extracts minerals from the earth for making various things. He makes dams for producing electricity. These are a few of the ways in which man modifies his enviorment.
(ii) Animals, whether carnivores or herbivores, ultimately depend on plants for their food. Also, plants provide fresh oxygen to animals to breathe in. These keep the enviorment clean and provide shelter to a number of animals. On the other hand, animals provide carbon doxide which plants usde for making their food
Que: Imagine an ideal environment where you would love to live. Draw the picture of your ideal environment.
Ans: Students are expected to do this activity themselves. However, a sample is given below.
Class 7 chapter Chapter 1. Environment Important key points for quick revision for board exams, ssc and upsc exams preparaion.
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1. Additional Questions With Solutions
Class 7 chapter Chapter 1. Environment Important key points for quick revision for board exams, ssc and upsc exams preparaion. - Chapter 1. Environment - NCERT Exercise: NCERT Book Solutions for class 7th. All solutions and extra or additional solved questions for Chapter 1. Environment : NCERT Exercise Geography class 7th:English Medium NCERT Book Solutions. Class 7 chapter Chapter 1. Environment Important key points for quick revision for board exams, ssc and upsc exams preparaion.
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Geography Chapter List
Chapter 1. Environment
Chapter 2. Inside Our Earth
Chapter 3. Our Changing Earth
Chapter 4. Air
Chapter 5. Water
Chapter 6. Natural Vegetation and Wild Life
Chapter 7. Human environment Settlement Transport And Communication
Chapter 8. Human Environment Interactions The Tropical and the Subtropical Region
Chapter 9. Life in the Temperate Grasslands
Chapter 10. Life in the deserts