SEBA Class 6 Social Science (English Medium) Chapter 4 – “Major Domains of the Earth” Summary & Solutions
SEBA Class 6 Social Science (English Medium) Chapter 4 – “Major Domains of the Earth” solutions are available at Ospin Academy. We provide SCERT-based textbook answers, multiple-choice questions (MCQs), and a detailed chapter summary to assist students in their exam preparation.
📖 Chapter Overview:
This chapter introduces students to the Earth’s four major domains – the Lithosphere, Hydrosphere, Atmosphere, and Biosphere, explaining their importance and interconnections.
- Lithosphere: The solid outer layer of the Earth, including continents and landforms.
- Hydrosphere: The Earth’s water bodies, such as oceans, rivers, and lakes.
- Atmosphere: The layer of gases surrounding the Earth, necessary for life.
- Biosphere: The zone where life exists, interacting with all three other domains.
- Assam’s Perspective: Understanding Assam’s landforms, rivers, and climatic influences.
📌 Key Topics Covered:
- ⭐ What are the four major domains of the Earth?
- ⭐ How do these domains interact with each other?
- ⭐ Why is the atmosphere important for life?
- ⭐ What are the major water bodies in the Hydrosphere?
- ⭐ How does Assam’s geography relate to these domains?
📝 How Ospin Academy Assists in Exam Preparation:
- ✅ Comprehensive Solutions: Detailed answers based on the SCERT Class 6 Social Science English Medium textbook.
- ✅ Practice Questions: MCQs and additional exercises to reinforce learning.
- ✅ Conceptual Clarity: Simplified explanations with examples relevant to Assam.
- ✅ Quick Revision: Concise notes for efficient last-minute study sessions.
To access complete solutions for SEBA Class 6 Social Science (English Medium) Chapter 4 – “Major Domains of the Earth,” visit Ospin Academy today!
Class 6 Social Science (English Medium) PDF Solutions 2025-26 | SCERT Assam
Download Class 6 Social Science PDF for SCERT Assam English Medium students. Get the textbook, short question answers, and MCQ type answers for Geography, History, Economics, and Political Science. Ideal for exam preparation with downloadable study materials.
Exercise
1. Answer the following questions-
(a) Name the four domains of the earth.
Ans: The four major domains of the earth are lithosphere, hydrosphere, atmosphere and biosphere.
(b) Name the continents of the world in order of size.
Ans: The continents are, from largest to smallest: Asia, Africa, North America, South America, Antarctica, Europe, and Australia.
(c) Name the continent that entirely lies in the Southern Hemisphere.
Ans: Australia and Antarctica are entirely in the Southern Hemisphere, while Africa, South America, and Asia span both hemispheres.
(d) Name the different layers of the atmosphere.
Ans: Atmosphere has been divided into four layers-troposphere, stratosphere, mesosphere and thermosphere.
(e) Why atmosphere is essential for organisms?
Ans: The atmosphere acts as a blanket, maintaining the Earth’s average temperature and containing essential gases for sustaining life. The ozone layer protects against harmful UV rays, water cycle is not possible without atmosphere.
(f) Name the continents and oceans of the world.
Ans: The continents of the world are: Asia, Europe, Africa, North America, South America, Australia, Antarctica and the oceans of the world are: Pacific Ocean, Atlantic Ocean, Indian Ocean, Arctic Ocean, Antarctic Ocean.
(g) What changes have been brought about by human being in the biosphere?
Ans: Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. These changes have triggered climate change, soil erosion, poor air quality, and undrinkable water.
2. Tick (✔) to correct answer-
(a) The mountain that separates Asia from Europe is –
(i) Andes.
(ii) Himalayas.
(iii) Urals.
Ans: Urals.
(b) Element having highest percentage in atmosphere is –
(i) Nitrogen.
(ii) Oxygen.
(iii) Carbon dioxide.
Ans: (i) Nitrogen.
(c) The Major domain of the earth composed of solid rocks is –
(i) Atmosphere.
(ii) Hydrosphere.
(iii) Lithosphere.
Ans: (iii) Lithosphere.
(d) The largest continent of the world is –
(i) Africa.
(ii) Asia.
(iii) Oceania.
Ans: (ii) Asia.
3. What should we do to keep the biosphere as a suitable living environment? Discuss in group and write down.
Ans:To keep the biosphere a suitable living environment, we should:
Conserve Natural Resources – Use resources sustainably and reduce waste.
Protect Ecosystems – Preserve forests, wetlands, and wildlife habitats.
Promote Sustainable Practices – Adopt eco-friendly agriculture and energy sources.
Raise Awareness – Educate communities about environmental impact and conservation.
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