In this Course all the important topics of Geography for various Competitive Exams such as SSC, Bank PO etc are covered extensively. Each lesson is supported by Video Lectures and followed by specially designed Quiz.
Normally geography accounts for 5 to 7 marks in SSC Exam. Geography plays an important role in various Exam conducted by different agencies and the course has been disgned by experts after thorough and extensive research.
- All important Points about our Solar system
- Geography Notes on Atmosphere and It’s Layer
- Geography Notes on Land forms Created by River and Glacier system
- Geography Notes on Landforms Created by Wind and Water action
- Geography One – Liners for Railway & SSC Exams
- Important points about the Interior Structure of the Earth
- Some important points to remember about the “Earth”
Geography of India & World:
- Geography Notes: Riverside Cities and States in India
- Geography Notes: Short Notes on All the Important Rivers
- Geography Notes: List of Important Rivers of India
- GK Notes on Water & Air Transport in India
- Transportation in India: Road Transport
- Spark Plug – Important Temples of India
- GK Notes: Important Deserts of the world
- Indian Soil and Agriculture
- GK Notes on Different States and their Folk Dances
- GK Notes: Important International Boundary Lines
- Geography Miscellaneous Notes
- Geography Miscellaneous Notes part 2 for SSC CGL
Physiography of India
India is the seventh largest country with 2.4% of total area of the world. Indian Sub-continent includes India, Pakistan, Nepal, Bangladesh and Bhutan, lying totally in northern hemisphere. The physiography of India is unique and is responsible for development of distinctive features in the sub-continent.
It is a mixture of rock debris and organic material, soils are living systems. The three layers of soil found on Earth are called Horizons. The lowermost rock is known as the Parent rock or Bedrock.
Drainage is the water flow through well defined channels. Drainage pattern is an outcome of geological time period, nature and structure of rocks, topography, slope, amount of water flowing and periodicity of the flow. The types of drainage patterns are:
Dendritic – resembles branches of a tree, mainly north Indian Plains have rivers making this type of pattern.
Radial – Flow in all directions from a hill, like Son and Narmada (rivers of Amarkantak Plateau)
Trevellis– Primary tributaries flow parallel to each other and secondary tributaries join them at right angles.
Centripetal – Rivers discharge water from all directions in a lake or depression.
India has a monsoon kind of climate. The whole country has a tropical monsoonal climate since, the greater part of the country lies within tropics. And the climate is influenced by the south-west and North-east monsoons.
Agricultural seasons of India are three chief ones – Kharif, Rabi and Zaid.
It is given fact that the radius of earth is 6,370 km. Therefore, the interior of Earth can not be studied only by direct observations. But its properties are studied indirectly by deducing conclusions from the study of earthquake waves that propagate through the interior rocks and other such indirect means.
Earthquake and Seismic Waves
The study of seismic activity gives valuable information about the interior structure of the Earth. Earthquake is a natural event and involves shaking of the ground. A thorough study and observations of this phenomenon has helped in understanding of innermost parts where this occurs . An Earthquake is the shaking or vibration/tremors in the Crust, caused as a result of internal forces and vulcanism in the Earth.
Motions of the Earth
The Earth shows two types of motions which leads to seasons and day-night patterns. These motion are – rotation around its own axis and revolution about the Sun.
A Volcano is basically an opening in the Earth’s crust through which heated, materials usually in form of magma are ejected out to the surface of Earth.
Continents cover 29 percent of the surface of the earth and remainder is under oceanic waters. Alfred Wegner was a German meteorologist who put forth the Continental Drift Theory in 1912.
98% of Earth’s crust is made up of 8 elements
Earth’s crust is composed of rocks. Its an aggregate of one or more minerals. Rocks do not have definite composition of mineral constituents. However, feldspar and quartz are the most common minerals found in rocks.
Endogenic and exogenic forces that cause physical stresses and chemical actions upon earth materials and bring about changes in the surface configuration of the earth are known as Geomorphic Processes. The Earth’s surface is continuously exposed to endogenic as well as exogenic forces.
The composition of Atmosphere is said to be a mixture of different gases. It envelops around the Earth. 99% of total mas of atmosphere is confined to highest of 32 km from the Earth’s surface.
Earth receives most of its energy in form of short wavelengths
Air in horizontal motion is Wind, And Atmospheric Pressure determines the rise and sink of air. The pressure and winds in atmosphere determine formation of air masses and occurrence of storms.
Since Atmosphere contains water in form of vapour, it causes various changes in the environment. The presence of water in the atmosphere causes various weather phenomena. This water is present in all three forms in the atmosphere – solid, liquid and gas.