Category: Geography

Sand Dunes and its Types

Sand Dunes: A sand dune is any hill of loose sand shaped by the wind. Dunes are one of the most common types of eolian landforms. They form where there is a source of sand- for example, a sandstone formation that weathers easily and releases individual grains, or perhaps a beach supplied with abundant sand from …

Formation of the Earth

Formation of the Earth: The earth is a planet, so it was also formed just like other planets. In the beginning, the earth was a huge collection of cold objects called planetesimals. These planetesimals which formed the earth came from two regions- from the region occupied by the inner planets like Mercury and Venus, and from …

The Case of Pangea

Pangea: At present we have seven big continents or landmasses on the surface of earth or on the lithosphere. These continents are North America, South America, Africa, Europe, Asia, Australia and Antarctica, which are separated by the oceans. In the year 1912, German Scientist Alfred Wegener suggested that all the present separate continents had in the …

Deforestation Causes and Consequences

What is Deforestation? Deforestation means clearing of forests to claim land for use by man. In other words, removal, decrease or deterioration of forested area is called deforestation. It is a serious threat to our economy, quality of life and environment. It is the direct outcome of the increasing demand for croplands for feeding the rapidly …

Wasteland Reclamation

Wasteland Reclamation: Wastelands are lands that are economically unproductive, ecologically unsuitable and subject to environmental deterioration. Wastelands are broadly categorized under two groups: Barren and Uncultivable Wasteland- It includes lands that cannot be brought under cultivation or economic use except at a very high cost, whether they exist as isolated pockets or within cultivated holdings. They …

Climate Change and its Impact

Climate Change: Climate is the average weather of an area. It is the general weather conditions, seasonal variations and extremes of weather in a region. Such conditions which average over a long period- at least 30 years– is called climate. Climate can change naturally for a variety of reasons. Some of the driving factors of climate …

Rainwater Harvesting- Methods and Advantages

Rainwater Harvesting: Groundwater, as a natural resource has the major advantage of meeting the requirements of emergency supplies during times of scarce water. Dependence on groundwater to meet the needs of the industrial sector also has resulted in lowering the groundwater table. Overdrawal of water along the coastal areas has resulted in the intrusion of saline …