WBPSC Prelims and Mains Notes-WBPSC Test Series
Earth and its Geological time scale:- Origin of the Earth:- EARLY THEORIES:- A large number of hypotheses were put forth by different philosophers and scientists regarding the origin of the earth. One of the earlier and popular arguments was by German philosopher Immanuel Kant. Mathematician Laplace revised it in 1796. It is known as … Read more
Current Geopolitical Problems:- Across the globe, governments and institutions face increasing challenges to their legitimacy and authority. All forms of government in every region will face increasing tensions both domestic and foreign. In the short-term, these global trends will increase the threat posed by all types of terrorism, and the ability for asymmetrically-powerful state and … Read more
Earthquakes and Volcanoes: Types, distribution and their impact:- Earthquake:- The study of seismic waves provides a complete picture of the layered interior. An earthquake in simple words is shaking of the earth. It is a natural event. It is caused due to release of energy, which generates waves that travel in all directions. Why does … Read more
Broad Physical Feature: Mountains, Plateaus, Plains, Lakes and Glaciers:- Landforms are the natural features and shapes existent on the face of the earth. Landforms possess many different physical characteristics and are spread out throughout the planet. Together, landforms constitute a specific terrain and their physical arrangement in the landscape forms what is termed as … Read more