Wind plays a important role in modifying the geomorphology particularly in desert and semi desert area.
Wind Erosion. The wind causes erosion in desert areas in three ways: (a) Deflation, (b) Abrasion, (c) Attrition
(a) Deflation. The particles which are loosened on the rocks due to weathering are blown away by winds. The action is known as deflation. This action is mare intense where the earth's surface is deprived of its vegetation cover.
(b) Abrasion. The dust and sand particles present in the air float in the atmosphere. When the winds blow faster these particles act as tools of the wind and wear down the rocks by scraping, rubbing, undercutting, scouring, grooving, etc. The intensity of this action depends upon the speed of the wind and the number of particles present in the air.
(c) Attrition. The dust and sand particles in air, strike against one another and get smaller and rounded by friction. This process is called attrition.
Locals hypothesize that the legacy of Italian blood and culture in Cologne, colonized by the Romans more than 1500 years ago, makes the people more jovial and lighthearted. Cologne is the largest city on the Rhine.
Kolsch is not only the dialect spoken here but, also the name of their own top-fermented beer. There are more than 4,000 pubs, restaurant's and brewery taverns in Cologne.
Unlike many of the world's large cities, Cologne, with a population of over a million, gets better every day, there are more things to do and see, more new and innovative buildings... more
Travel is an opportunity to learn, whether geography, languages, history or other subjects.
Cologne is situated on the beautiful Rhine River.