SEBA Class 6 Social Science Chapter 4 Major Domains of the Earth Solutions in English Medium to each chapter is provided in the list so that you can easily browse throughout different chapters SEBA Class 6 Social Science Chapter 4 Major Domains of the Earth Notes and select need one.
SEBA Class 6 Social Science Chapter 4 Major Domains of the Earth
Also, you can read the SCERT book online in these sections Solutions by Expert Teachers as per SCERT (CBSE) Book guidelines. These solutions are part of SCERT All Subject Solutions. Here we have given Geography, History, Political Science and Economics Assam Board SEBA Class 6 Social Science Chapter 4 Major Domains of the Earth Question Answer for All Subject, You can practice these here.
Major Domains of the Earth
Chapter – 4
| Geography |
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.
