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Natural Resource: Land, Soil, Water

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  Natural Resource : Land, Soil, Water The following are the major topics and subtopics of Chapter 2 that students will cover while studying this chapter: Land 1. Land Use 2. Conservation of land resource Soil 1. Factors of soil formation 2. Degradation of soil 3. Conservation of soil Water 1. Water availability problems 2. Conservation of water resources It is a known fact that 90% of the world population inhabits only 30% of the available land area. The remaining 70% of the land is either uninhabited or sparsely populated. Land, soil, and water are the abiotic resources of the earth. They also comprise the most important resources. Biotic resources are composed of natural vegetation and wildlife resources. Both Biotic and abiotic resources are exhaustible in nature. Hence, humans should practise judicious use of these resources to enhance their longevity and sustainability.    Land is considered the most important natural resource. It covers about 30% of the total area of the earth’s
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Climate

Climate: The term climate is the sum total of.the weather conditions (including variations) over a large area for a long period of time (more than thirty years). Weather: The term weather refers to the state of the atmosphere at a place and time with reference to the following elements Temperature  Air pressure Wind Precipitation (Rainfall or snowfall) Humidity  Cloudiness or sunshine The weather conditions fluctuate very often within a day. Based on the generalised fhonthly atmospheric conditions, the year is divided into seasons such as winter, summer and rainy seasons. The world is divided into a number of climatic regions. In Asia, India and other South and South-Eastern countries have monsoon type of climate. The word monsoon is derived from the Arabic word ‘ mausim ’ which literally means season. ‘ Monsoon ’ refers to the seasonal reversal in the wind direction during a year. Regional Climatic Variation In India Although there is an overall unity in the general climatic pattern i
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