Major Domains of the Earth - Chapter Wise CBSE Solved Question and Answer Based On NCERT
Points To Remember:
There are four major domains of the earth- lithosphere, atmosphere, hydrosphere and biosphere
The atmosphere is divided into five layers based on composition, temperature and other properties. The different layers of the atmosphere are: troposphere, stratosphere, mesosphere, thermosphere and exosphere
The large continuous masses of land above the earth’s surface are called continents. The major continents of the earth are: Asia, Europe, North America, South America, Africa, Australia and Antarctica
Asia is the largest continent, it covers one third of total earth’s land area. It lies in eastern hemisphere
World’s largest desert “Sahara” and world’s largest river Nile is in Africa
Oceans are the major part of hydrosphere. The ocean waters are always moving. The three movements of ocean waters are waves, tides and ocean currents. The four major oceans are: Pacific Ocean, Atlantic Ocean, Indian Ocean and Arctic Ocean
Largest proportion of fresh water is in the form of glaciers
Oceanic crust forms surface of ocean basins, it is composed of Silica and Magnesium and also known as Sima
There is need to limit the use of resources, it is important to maintain balance in nature between the lithosphere, atmosphere and hydrosphere
