Geography Booster

 Solar Energy : Source, Solar heating devices, solar cooker solar cell   Sunlight is Earth’s most abundant energy source and is delivered free of charge. Indeed, the energy from sunlight reaching the land surface of the earth  is thousands of times greater than the world’s current total annual consumption of energy. Yet harnessing sunlight’s energy … Read more Solar Energy

 Pressure and wind belts Atmospheric pressure, also called barometric pressure, force per unit area exerted by an atmospheric column (that is, the entire body of air above the specified area). Atmospheric pressure can be measured with a mercury barometer (hence the commonly used synonym barometric pressure), which indicates the height of a column of … Read more Pressure And Wind Belt

 Population growth and economic development The effect of population growth on a society’s per capita output level depends on the pattern of population growth as also its institutional (organ­isational) framework. In other words, it depends on the age composition of the population. The pattern of spending reflects the age distribution. An ageing population—one … Read more Population Growth And Economic Development

 Migration and Metropolitan Region Migration Migration has been defined as crossing of the boundary of a political or administrative unit for a certain minimum period of time. It includes the movements of refugees, displaced persons, uprooted people as well as economic migrants. Internal migration refers to a move from one area (a province, … Read more Migration And Metropolitan Regions

 Oceans  tides An ocean tide refers to the cyclic rise and fall of seawater. Tides are caused by slight variations in gravitational attraction between the Earth and the moon and the Sun in geometric relationship with locations on the Earth’s surface. Tides are periodic primarily because of the cyclical influence of the Earth’s … Read more Oceans Tides

 Distribution of natural resources World Distribution of forest reserves Forests cover 31 percent of the world’s land surface, just over 4 billion hectares. (One hectare = 2.47 acres.) This is down from the pre-industrial area of 5.9 billion hectares. According to data from the U.N. Food and Agriculture Organization, deforestation was at its … Read more Distribution Of Natural Resources

 Interior of the earth- composition and physical conditions   Core, mantle, and crust are divisions based on composition. The crust makes up less than 1 percent of Earth by mass, consisting of oceanic crust and continental crust is often more felsic rock. The mantle is hot and represents about 68 percent of Earth’s … Read more Interior Of The Earth

 Weather forecast There are two ways for weather forcasting: Short-range forecasting Meteorologists can make somewhat longer-term forecasts (those for 6, 12, 24, or even 48 hours) with considerable skill because they are able to measure and predict atmospheric conditions for large areas by computer. Using models that apply their accumulated expert knowledge quickly, … Read more Weather Forecast

 The Solar System The solar system consists of the Sun and its eight main planets, their satellites, asteroids, comets, meteors and other dwarf planets. The Sun is at the one of the two Centers of the Solar system and the planets revolving around it in elliptical orbits. Let us take a look at … Read more Solar System

 Pressure and wind belts Atmospheric pressure, also called barometric pressure, force per unit area exerted by an atmospheric column (that is, the entire body of air above the specified area). Atmospheric pressure can be measured with a mercury barometer (hence the commonly used synonym barometric pressure), which indicates the height of a column … Read more Pressure And Wind Belt1