TAMILNADU - TRANSPORT GLOSSARY Back waters: The part of a river which are stagnant and do not reach the sea as they are pushed by the current. Distributary: A branch or outlet which leaves a main river and does not rejoin it, carrying its water to the sea or a lake. Doab: A land between the two converging rivers. Estuary: Mouth of a river where it enters the sea through a single channel with a hollow.
Perennial Rivers: The rivers which flow throughout the year and have permanent source of water. Pass: A narrow gap through the mountains providing a route or passage way. Peninsula: The land area covered with ocean on three sides. Subcontinent: A large area of a continent that stands distinct from the rest of the continent and possesses almost all the characteristics of a continent.
Standard Time: The local time of central meridian of ones country. Tributary: A river or stream which contributes its water to main river. Climate: The weather conditions prevailing in an area in general or over a long period. Meteorology: The branch of science concerned with the processes and phenomena of the atmosphere, especially as a means of forecasting the weather.
Seasons: Each of the four divisions of the year (spring, summer, autumn, and winter) marked by particular weather patterns and daylight hour. Weather: The state of the atmosphere at a particular place and time as regards heat, cloudiness, dryness, sunshine, wind, rain, etc. Wildlife: Wild animals collectively; the native fauna (and sometimes flora) of a region. Soil: Soil is the uppermost layer of the land surface composed of minerals, organic matter, living organisms and water.
Khadar: Newer alluvium soil found in valley flooded almost every year. Bhangar: Older alluvium soil found in mts above flood level. Soil erosion: Removal of top soil. Soil conservation: Prevention of soil from erosion and protecting its fertility.
Irrigation: Watering of plants through artificial means. Multipurpose projects: Construction of dams across rivers aimed at