NCERT Class 7 Geography Chapter 1 Question Answers cover all the exercise questions in a simplified and precise way. NCERT Class 7 Geography Chapter 1 Question Answers are easy to learn for the exams.
NCERT Class 7 Geography Chapter 1 Question Answers
1. What is an ecosystem?
Answer: All plants, animals, and human beings are interdependent on each other and their immediate surroundings. The relationship between the organisms and their surroundings forms an ecosystem.
2. What do you mean by the natural environment?
Answer: Natural environment refers to both biotic (plants and animals) and abiotic (land) conditions that exist on the earth.
3. Which are the major components of the environment?
Answer: Natural components – land, air, water, living things. Human-made components – buildings, parks, bridges, roads, industries, monuments, etc., and humans – individual, family, community, religion, educational, economic, etc.
4. Give four examples of a human-made environment.
Answer: Buildings, parks, bridges, and roads.
5. What is the lithosphere?
Answer: The lithosphere is the solid crust or the hard top layer of the earth. It comprises rocks and minerals and is covered by a thin layer of soil.
6. Which are the two major components of the biotic environment?
Answer: Flora (Plants) and Fauna (Animals).
7. What is a biosphere?
Answer: The biosphere is a narrow zone of the earth where land, water, and air interact with each other to support life. It is the area where life exists. All living things are part of the biosphere.
Multiple Choice Questions.
1. Which is not a natural ecosystem?
(a) Desert
(b) Aquarium
(c) Forest
2. Which is not a component of the human environment?
(a) Land
(b) Religion
(c) Community
3. Which is a human-made environment?
(a) Mountain
(b) Sea
(c) Road.
4. Which is a threat to the environment?
(a) Growing plant
(b) Growing population
(c) Growing crops.
Match the Columns.
| 1. Biosphere | c. Narrow zone where land, water, and air interact |
| 2. Atmosphere | a. Blanket of air that surrounds the earth |
| 3. Hydrosphere | b. Domain of water |
| 4. Environment | d. Our surroundings |
Give reasons for the following statements.
1. Man modifies his environment.
Reason:
Man modifies his environment to fulfill his needs and make his life comfortable. For example, humans clear forests to construct houses and factories.
2. Plants and animals depend on each other.
Reason:
Plants and animals depend on each other for their food and breathing.
Plants release oxygen that animals breathe and absorb carbon dioxide that animals release.