Indian Geography

Fact: Cover 4.32 % of the area Texture Consists of aeolian sand (90 – 95%) and clay (5 – 10%) It lacks moisture content and is sandy. Composition Humus content is less, and Nitrogen is originally low but some of … Continue reading →

Formation: The formation of these soil is mainly governed by the deposition of organic matter derived from the forest and changes with parent rocks, ground configuration and climate. Fact: Cover 8.67 % of the area Characteristics It is thin-layered and … Continue reading →

Conditions for formation There must be laterite rock or structure. Formed under high temperature and heavy rainfall. Characteristics Subjected to heavy leaching due to high rainfall that results in low fertility. Brown in colour Composition Deficit in lime and silica. … Continue reading →

Fact: Covers 18.5 % of the area. Composition: The presence of ferric oxides makes the colour of soil red. Texture: Sandy to clay and loamy. Characteristics Rainfall is highly variable. Well drained soil and structure is sandy Chemical Composition Rich … Continue reading →

Fact: Cover 15 % of the area. Formation: These soils are of volcanic origin and formed due to weathering of basaltic rocks. Distribution: It is found in dry and hot regions of the peninsula. Composition: The black colour of soil … Continue reading →

Fact: They are the largest soil group covering about 46 percent of the total area. Formation in India Alluvial soils are formed mainly due to silt deposited by Indo-Gangetic-Brahmaputra rivers.  In coastal regions, some alluvial deposits are formed due to … Continue reading →

Definition of Soil  Soil is a mixture of small rock particles/debris and organic materials/ humus that develop on the earth’s surface and support the growth of plants. Factors Influencing Soil Formation Parent Material Relief/Topography Climate Natural Vegetation & Biological Factors … Continue reading →

Basics Period: mid-March to May. Characteristics: This season include high temperature and low humidity. Temperature in Summer Season High insolation due to the apparent movement of the sun between the equator and the Tropic of Cancer. Due to the moderating … Continue reading →

Basics Period: November to mid-March Fact: January is the coldest month as the apparent path of the sun is south of the equator. Characteristics: Clear skies, pleasant weather, cool and slow north-east trade winds, low temperature, low humidity, wide temperature … Continue reading →

Areas of Very High Rainfall (more than 200m) These include western side of Western Ghats. Average rainfall is 200 – 400 cm. Assam, Nagaland, Meghalaya, Mizoram, Arunachal Pradesh, Sikkim, parts of Manipur, Tripura and north – eastern tip of West … Continue reading →