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Class 11 Geography Notes Chapter 11 Water in the Atmosphere The air contains water vapour. It varies from zero to four per cent by volume of the atmosphere and plays an important role in the weather phenomena. Water is present in the atmosphere in three forms namely—gaseous, liquid and solid. The moisture in the atmosphere …
Class 11 Geography Notes Chapter 11 Water in the Atmosphere
Class 11 Geography Notes Chapter 10 Atmospheric Circulation and Weather Systems Air expands when heated and gets compressed when cooled. This results in variations in the atmospheric pressure. The result is that it causes the movement of air from high pressure to low pressure, setting the air in motion. Air in horizontal motion is wind. …
Class 11 Geography Notes Chapter 10 Atmospheric Circulation and Weather Systems
Class 11 Geography Notes Chapter 9 Solar Radiation, Heat Balance and Temperature We live at the bottom of a huge pile of air. We inhale and exhale but we feel the air when it is in motion. It means air in motion is wind. Envelop of air is atmosphere which is formed of multitude gases. …
Class 11 Geography Notes Chapter 9 Solar Radiation, Heat Balance and Temperature
Class 11 Geography Notes Chapter 8 Composition and Structure of Atmosphere The air is an integral part of the earth’s mass and 99 per cent of the total mass of the atmosphere is confined to the height of 32 km from the earth’s surface. The air is colorless and odorless and can be felt only …
Class 11 Geography Notes Chapter 8 Composition and Structure of Atmosphere
Class 11 Geography Notes Chapter 7 Land forms and their Evolution After weathering processes have had their actions on the earth materials making up the surface of the earth, the geomorphic agents like running water, ground water, wind, glaciers, waves perform erosion. Due to changes in climatic conditions and vertical or horizontal movements of landmasses, …
Class 11 Geography Notes Chapter 7 Land forms and their Evolution
Class 11 Geography Notes Chapter 6 Geomorphic Processes The earth’s crust is dynamic. It is undergoing change continuously. Some powers have led to changes in form of the earth. These powers have been divided into two parts: internal and external. Internal forces keep giving birth to new land forms. External forces keep changing the forms …
Class 11 Geography Notes Chapter 6 Geomorphic Processes
Class 11 Geography Notes Chapter 5 Minerals and Rocks About 98 per cent of the total crust of the earth is composed of eight elements like oxygen, silicon, aluminium, iron, calcium, sodium, potassium and magnesium, and the rest is constituted by titanium, hydrogen, phosphorous, manganese, sulphur, carbon, nickel and other elements. Thus, a mineral is …
Class 11 Geography Notes Chapter 5 Minerals and Rocks
Class 11 Geography Notes Chapter 12 World Climate and Climate Change Three broad approaches have been adopted for classifying climate. They are empirical, genetic and applied. Koeppen identified a close relationship between the distribution of vegetation and climate. He selected certain values of temperature and precipitation and related them to the distribution of vegetation and …
Class 11 Geography Notes Chapter 12 World Climate and Climate Change
