There are four oceans in the world – the Pacific ocean, the Atlantic ocean, the Indian Ocean and the Arctic ocean. The Pacific Ocean. It is largest ocean and is spread over one-third of the earth. … The Atlantic ocean. It is the second largest ocean in the world. … The Indian Ocean. … The …
The earth is called the blue planet because 71% of the earth is covered with water and 29% with land. Hydrosphere consists of water in all its forms in the oceans, lakes, ponds, rivers, streams, ice caps and ice sheets. On the surface as surface water and below the surface of the earth, in the …
# Continent Area (Km²) 1 Asia 31,033,131 2 Africa 29,648,481 3 Europe 22,134,900 4 North America 21,330,000
Divisions of the Earth’s Surface: The two main divisions of the earth’s surface are: The large landmasses are known as the continents. The ocean basins, contain large water bodies. Continents and Oceans differ from each other in their relative levels. All the Oceans of the world are connected with one another. Level of seawater remains …
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The organisms found in the biosphere are broadly divided into plant kingdom and animal kingdom. The four realms of the earth interact with one another and affect one another in some way or the other. The growth of human population is a major cause of change in the biosphere. The growing population requires space for …
Lithosphere.The solid portion of the earth is termed as Lithosphere. It comprises (of) the rocks of earth’s crust. It also has shallow layers of soil that contain nutrient elements which are necessary for all types of organisms.
Increase in industries has led to increase in pollution. Carbon-dioxide is an important constituent of air. But increase in amount of CO2 due to human activities has led to increase in global temperatures. This is termed as global warming.
The felling of trees causes the following negative impacts on nature: Soil erosion is increased. Loose soil are deposited in river beds. Level of river beds rises and during excessive rains they are not capable of keeping the whole of water under control. Hence floods are caused. Felling of trees also reduces the quantity of …
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Biosphere. The biosphere is the narrow zone of contact between the land, water and air, comprising all forms of life.Features: There are several species of organism in the biosphere. They vary in size from microbes and bacteria to huge mammals. All the living organisms including human are linked to each other and to the biosphere …
