WBPSC Prelims and Mains Notes-WBPSC Test Series
Geomorphology Earth’s Interior – Earthquake Waves – Shadow Zone Most of the knowledge we have about Earth’s deep interior comes from the fact that seismic waves penetrate the Earth and are recorded on the other side. Earthquake ray paths and arrival times are more complex than illustrated in the animations, because velocity in the … Read more
The ozone layer or ozone shield refers to a region of Earth’s stratosphere that absorbs most of the Sun’s ultraviolet (UV) radiation. It contains high concentrations of ozone (O3) relative to other parts of the atmosphere, although still very small relative to other gases in the stratosphere. The ozone “hole” is really a reduction in … Read more
Geopolitical Conflict is the Military engagements and diplomatic crises between nations with global implications and which even threatens in extreme circumstance to the survival of humanity.Various types of Geopolitical Conflicts are as follows:- Ø Conventional War:-The engagement of two or more nations in military conflict, using conventional weapons to target military infrastructure and invade/defend sovereignty … Read more
Iron ore plays a crucial role in the industrial development of a nation and various iron ore regions of the world are as follows:- 1- USA:- Lake Superior region, Northeastern region, southwestern region, western region. 2- Siegerland region of Germany. 3- China:- Manchuriyan deposits of Anshan, Yangtze valley and Hopie. 4- India:- Bihar and Orissa. … Read more
Introduction. 2 Two approaches to study Geography. 2 History: 2 Branches: 2 Origins of Earth. 3 Theories: 3 Nature of earth: 3 Time line: 3 Solar System.. 3 Earth: Shape and Size. 4 Location on Earth. 5 Motion of the Earth & Effect of inclination. 6 Time. 7 Moon. 8 Atmosphere. 10 Structure. 10 … Read more
Geopolitical Conflict is the Military engagements and diplomatic crises between nations with global implications and which even threatens in extreme circumstance to the survival of humanity.Various types of Geopolitical Conflicts are as follows:- Ø Conventional War:-The engagement of two or more nations in military conflict, using conventional weapons to target military infrastructure and invade/defend sovereignty … Read more
The International Date Line (IDL) is an imaginary line of longitude on the Earth’s surface located at about 180 degrees east (or west) of the Greenwich Meridian. The International Date Line separates two consecutive calendar days. Immediately to the left of the International Date Line (the date) is always one day ahead of the date … Read more