Biogeography – Soil – Soil Degradation Answer: Introduction The phrase “Soil erosion is creeping death” underscores the gradual yet irreversible degradation of soil through removal of its nutrient-rich top layer by wind, water, and anthropogenic activities. It reflects the slow …
Climatology – Air Masses – Weather Answer: Introduction An air mass is a large body of air with uniform temperature, humidity, and pressure characteristics, acquired from a source region. The concept was developed by Bjerknes and Solberg during the early …
Oceanography – Bottom topography of Ocean – Bottom topography of Indian Ocean Answer: Introduction The Indian Ocean, third largest among the world’s oceans, is bounded by Asia to the north, Africa to the west, Australia to the east, and merges …
Geography Optional – Climatology – Climate Classification Answer: Introduction Wladimir Köppen (1846–1940), a German climatologist, developed the Köppen Climate Classification in 1884 (revised in 1918 and 1936), integrating empirical temperature and precipitation data with vegetation zones. It remains one of …