Composition and structure
Atmosphere :- mixture of various gases, water vapor and dust Climate :- the average weather in an area over a long period of time. Weather ;- the condition of the …
Endogenous and exogenous forces
Endogenous forces Folds Types of folds 1. Symmetrical Fold – In this, the inclination of both the arms of the fold is the same. It is also called simple fold. …
Geomorphological processes and various phenomena
Earthquake 2. Intermediate earthquake – 50-250 km. 3. Deep or underground earthquake – 250-700 km. (i) Primary or Longitudinal Waves (ii) Secondary or Transverse Waves (iii) Surface or Long Period …
DISTRIBUTION OF CONTINENTS AND OCEANS
Continental Drift Theory (Alfred Wegener), 1912 Forces of Drifting Evidence Sea Floor Spreading (Hess), 1961 Plate Tectonic Theory Type of Plate Margin Constructive/Divergent Boundary Destructive/Convergent Boundary Conservative/Transform Boundary Motion Diverge …
Geology and Rocks
Geology Relative duration of Eons ERA (Period) EPOCH (Age)(millions of years ago) Some important events in the history of life Phanerozoic Cenozoic Quaternary Holocene 0.01 Historical time Phanerozoic Cenozoic …
Origin of the earth
Various geologists have various convictions about the beginning of the Earth. It grouped into two sorts. Monistic Concept 1. (Kant’s Gaseous Hypothesis) 2.Nebular Hypothesis of Laplace ❖ Dualistic Concept 1. …
Interior of Earth
Unnatural Sources 1. Density– 2. Pressure 3. Temperature Natural Sources 1. volcanic activity:- On the basis of the elements and liquid magma released from volcanic eruptions, it is clear that somewhere …
Latitude, Longitude, International Date Line and Time
General Introduction Latitude Some important latitude lines (i) Equator- (ii) Tropic of cancer (iii) Tropic of Capricorn (iv) Arctic Circle (v) Antarctic Circle Passing through Countries/States Equator 3 continents, 13 …
movements of the earth
General Introduction Earth is a planet of the solar system. It has two motions- (1) Rotation or daily motion (2) Revolution or annual motion. (1) Rotation or daily motion (2) …
Origin of the Universe and the Solar System
Galaxy and Nebula Origin and Evolution of Star Chandrashekhar Limit Neutron Star Black Hole Asterism Pole Star Meteorites and meteoroids Comets Theories about origin of the universe :- 1. Big …