Water Resources in India

What is water resources? Water resources are natural sources of water that are useful for human consumption and other purposes. 97% of the Earth’s water is saltwater, and only 3% is freshwater. Two-thirds of the freshwater is frozen in glaciers and polar ice...

Land Resources of India

Land Resources Land is a crucial resource for humans and provides biotic resources for plants and animals. Soil composition, groundwater availability, and local climate are the basis of land utilization and development. Minerals, groundwater, and other hidden...

Auroras Borealis and Aurora Australis

What is Aurora? An Aurora is a display of light in the sky seen in high-latitude regions caused by the collision of charged particles with atoms in the atmosphere. It is also known as a Polar light. They occur commonly at high northern and southern latitudes. Aurora...

Climatic Regions of World

Climate measures the average pattern of variation in different meteorological elements over long periods of time. The elements include temperature, humidity, atmospheric pressure, wind, precipitation, atmospheric particle count, and other variables. Independent study...

Trewartha Climatic Classification

Trewartha climate classification was published in 1966 by Glenn Thomas Trewartha. It is a modified version of the Koeppen system. Trewartha’s classification combines empirical and genetic classification schemes. Trewartha’s classification is simpler and...