Composition, Structure and Stratification of the atmosphere

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  An atmosphere is a layer of gases surrounding a planet or other material body, that is held in place by the gravity of that body. Many of the planets in this solar system have atmospheres, but none that we know of have an atmosphere quite like ours – one that can support life. The … Read more Composition, Structure and Stratification of the atmosphere

FRACTIONS

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Fractions Any unit can be divided into any numbers of equal parts, one or more of this parts is called fraction of that unit. e.g. one-forth (1/4), one-third (1/3), three-seventh (3/7) etc. The lower part indicates the number of equal parts into which the unit is divided, is called denominator. The upper part, which indicates the number of … Read more FRACTIONS

 Air masses and fronts

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  Airmasses   An airmass is a large body of air with relatively uniform thermal and moisture characteristics. Airmasses cover large regions of the earth, typically several hundred thousand square kilometers. Airmasses can be as deep as the depth of the troposphere or as shallow as 1 to 2 km. Airmasses form when air remains … Read more  Air masses and fronts

Drain Theory

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  Dadabhai Naoroji: ‘Poverty in India’ (1876) He claimed that the drain of wealth and capital from the country which started after 1757 was responsible for absence of development in India. Drain was done through trade, industry and finance Two elements of the drain That arising from the remittances by European officials of their savings, … Read more Drain Theory