How the coastal sand dunes are formed?
Answers
Sand is one form of granular material composed of finely divided rock and mineral particles found on the Earth. Sand is indeed necessary for any life to take place since, without sand, we will not get food, minerals and other natural sources of energy. Places in the mother earth differ from region to region. Not all the places are flat. Some places like deserts and in the coastal regions we could see the sand being eroded to one side and thus forming a hut-like structure. One could imagine this state as the house build on the beach sand with sharp edges on the top. The hut-like structure is termed as the Sand Dunes. Not all the dunes formed resembles the hut-like structure because, due to the force of the wind, it differs. Sand dunes are also a natural event in some parts of the earth as like the rain, fog, mist etc.