Geography

“Jig saw” fit- Wegener was struck by the geographical similarity between the opposite coasts ofthe Atlantic Ocean. The outlines of the two coasts appears to be the detached portion of theother ie. The east coast of north and South America can be exactly fit into the left coast ofAfrica and Europe. Geological structure- there is … Read more

  S.No. Himalayan drainage Peninsular drainage 1. Perennial in nature. Seasonal in nature 2. Both snow fed and monsoon n fed Monsoon fed 3. Voluminous Less voluminous 4. Very large command area Less Command area 5. Himalayan river exhibits antecedent character Consequent character is exhibited 6. All Himalayan rivers form delta at the mouth Form … Read more

After independence, India witnessed green , blue and white revolutions in farm, fishery and dairy sector respectively. Green revolution: It was initiated to achieve food security in the country. It included three components : continued expansion of farming areas, double-cropping existing farmland, using seeds with improved genetics. The Green Revolution resulted in a record grain … Read more

An air mass is a large volume of air in the atmosphere that is mostly uniform in temperature and moisture. Air masses can extend thousands of kilometers across the surface of the Earth, and can reach from ground level to the stratosphere—16 kilometers (10 miles) into the atmosphere. The climates of most regions worldwide are … Read more

Manufactured sand (M-Sand) is a substitute of river sand for concrete construction . Manufactured sand is produced from hard granite stone by crushing.The crushed sand is of cubical shape with grounded edges, washed and graded to as a construction material. The size of manufactured sand (M-Sand) is less than 4.75mm.Manufactured sand is an alternative for … Read more

Scheduled Castes are notified in 31 States/UTs of India and there are altogether 1,241 individual ethnic groups, etc. notified as Scheduled Castes in different States/UTs. There has been some changes in the List of SCs/STs in States/ UTs during the last decade. As per the 2011 Census of India, there are around 201.4 million SCs … Read more

  Mono Cropping: Mono-cropping or monoculture refers to growing of only one crop on a piece of land year after year. It may be due to climatological and socio-economic conditions or due to specialisation of a farmer in growing a particular crop, e.g., under rained conditions, groundnut or cotton or sorghum are grown year after … Read more

The Inter Tropical  Convergence Zone (ITCZ) or Thermal Equator is a broad trough of low pressure in  equatorial latitudes (it always remains on the north of the equator due to effect of  landmass). This is where the northeast and the southeast trade winds converge and this  is a low pressure zone. This convergence zone lies … Read more

Most of our knowledge about the interior of the earth is largely based on estimates and inferences. Yet, a part of the information is obtained through direct observations and analysis of materials. The most easily available solid earth material is surface rock or the rocks we get from mining areas. Gold mines in South Africa … Read more

. India is a tropical country and has around 300 days availability of sunlight which is one of the highest in the world. Germany is a sub-tropical country, now produces almost 40% of its energy from renewable power. India has huge potential.  Solar power has one unique advantage that it can be used to supply … Read more