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Geography

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Forests in India

Dec 10, 2010
2. Tropical Found in places with Chhotanagpur Plateau Deciduous or rain Tall between covering east Madhya Monsoon 150 to 200 cm. Pradesh, south Bihar, west • Trees are 30 to 45 Orissa and along the metres tall. Shiwaliks in the north. • Important trees are sal, teak, shisham, sandalwood, etc. 3. Tropical Dry Found where rainfall Maharashtra, Andhra is between 75 to Pradesh, Karnataka, Punjab, 100 cm. Haryana, Tamil Nadu, • Trees are 6 to 9 northern and western parts of metres tall. Madhya Pradesh. • Important trees are neem, shisham, babul, pipal, mango, etc.

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Climate

Dec 10, 2010
The climatic conditions of India can be categorised in terms of an annual cycle of seasons. Four main seasons are :

Area

Dec 10, 2010
India is a country of great geographical extent covering 3,287,263 km2 of area. It is the seventh largest country in the world, and is located in South Asia.

Agriculture

Dec 10, 2010
India is essentially an agricultural land. Two-thirds of its population still lives by agriculture. Agriculture includes farming, animal rearing and fishing.

Structure Of The Earth

Dec 10, 2010
The earth is an oblate spheroid. It is almost spherical, flattened a little at the poles with a slight bulge at the centre (equator). The structure of earth’s interior is layered.

Soil

Dec 10, 2010
Soil is the uppermost layer of the earth’s crust. It contains a mixture of fine powdered rock material and humus. Humus is the organic matter which is added to the soil by the decayed and decomposed remains of plants and animals.

Rocks

Dec 10, 2010
Down to a depth of 16 km from the surface of land, 95 per cent of the earth materials found in the earth’s crust consist of rocks. Rocks are made up of individual substances, called minerals, found mostly in solid state.

Motions of the Earth

Dec 10, 2010
Earth’s axis is an imaginary line which runs right across and passes through the centre of the earth. The earth spins round its axis which always remains inclined at an angle of 661/2° to the plane of the Earth’s orbit.

Major Oceans of the World

Dec 10, 2010
Major Oceans of the World

Major Biomes of the World

Dec 10, 2010
Vegetation comprises of plants growing over the surface of the earth. The plant geographers have divided the vegetation of the world into four great biochores : The Forest Biochore : Defined as plant formation consisting of trees growing close together nd forming a layer of foliage that shades the ground.

Latitude and Longitude

Dec 10, 2010
A globe has two fixed points—the North Pole and the South Pole. An imaginary line equator is drawn in such a way that at all points it lies exactly halfway between the two poles. It divides the earth into two equal parts i.e., the Northern Hemisphere and the Southern Hemisphere.

Landform

Dec 10, 2010
There are three major Landforms : mountains, plateaus and plains. Mountains An uplifted portion of the earth’s surface is called a hill or a mountain. Mountains are classified into the following four types.

Geological History of Earth

Dec 10, 2010
The earth is believed to have originated about 4600 million years ago.The main geological events in the history of earth can be categorized into the following eras.

Food Chain

Dec 10, 2010
The sequence of eating and being eaten and the resultant transfer of energy from one level to another is known as the food chain. The plants and algae are the first level in food chain and are known as primary producers.

Eclipses

Dec 10, 2010
When the light of the sun or the moon is blocked by another body, the sun or moon is said to be in eclipse.

Earthquakes

Dec 10, 2010
Any sudden disturbance below the earth’s surface may produce vibration or shaking in earth’s crust and some of these vibrations when reaches the surface, are known as earthquakes.

Continental Drift

Dec 10, 2010
Alfred Wegener was the geologist who in 1924 propagated the theory of continental drift which is very much in vogue now. According to this theory, nearly 150 million years ago,there was a single continent on earth known as ‘pangaea’ which broke into several pieces and began to drift apart.
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