What is Sand? Composition, Colors and Various Types of Sand


What is Sand? Sand is more than something that blankets beaches and deserts. It is ubiquitous, much more diverse and, an authentic relic. As Rachel Carson, the American marine biologist once quoted, “In every curving beach, in every grain of sand, there is a story of the Earth.” So, what is sand? Where does sand … Read more

Limestone – Formation, Composition, Types and Uses


Limestone – Formation, Composition, Types and Uses Limestone, or calcium carbonate, is the common rock found throughout the world. Oldest and perhaps slightly overlooked, limestone is very much part of our everyday life. It may be hidden with your walls, in the water you drink, the food you consume, or in the cosmetics. First discovered … Read more

U-shaped Valleys: Formation, Examples and Difference Between U-shaped Valley and V-shaped Valley


What are U-shaped Valleys? Valleys are of many kinds, however, among valleys mostly found formations are either U-shaped valley or V-shaped valley. U shaped valleys are found all over the world and are very common in mountain ranges, mainly where glaciers are formed or in previously glaciated mountainous areas. U-shaped valleys usually have a distinct … Read more