Prachin Bharat ka itihas: Stone Age

प्राचीन भारत का इतिहास|प्रागैतिहासिक काल |पाषाण काल दोस्तों नमस्कार।इस वीडियो में आप प्राचीन भारत का इतिहास के chapter पाषाण काल के सभी महत्वपूर्ण प्रश्नों को पढ़ेंगे ,जो विगत संघ लोक सेवा आयोग और राज्य लोक सेवा आयोग के परिक्षाओं में पूछे जा चुके हैं।इसलिए इनकी आनेवाले परीक्षाओं में पूछे जाने की संभावना बढ़ जाती है।

तो चलिए उन प्रश्नो को देखते हैं।

प्रश्न कोपेनहेगन संग्रहालय की सामग्री से पाषाण  काँस्यऔर लौह युग का त्रियुगीन विभाजन किसने किया ?

उत्तर  डेनमार्क के कोपेनहेगन संग्रहालय की सामग्री के आधार पर पाषाण  कांस्य और लौह युग का त्रियुगीय विभाजन 1820 में पुरातात्विक क्रिस्टियन जरगेनसन थॉमसन ने किया था।

प्रश्न. उत्खनित प्रमाणों के आधार पर पशुपालन का प्रारंभ कब हुआ था ?

उत्तर  मध्य पाषाण काल के अंतिम चरण में पशुपालन के साक्ष्य प्राप्त होने लगते हैं।ऐसे पशुपालन के साक्ष्य भारत मे आदमगढ़ ( होसंगाबाद, मध्य प्रदेश) तथा बागौर ( भीलवाड़ा ,राजस्थान) से मिले हैं।

प्रश्न. भारत के किस स्थान से हड्डी के उपकरण प्राप्त हुए हैं?

उत्तर मध्य पाषाण कालीन महदहा ( उत्तर प्रदेश जिला प्रतापगढ़) से बड़ी मात्रा …

Overpopulation : Causes , Effects and Solution

World Population Problem
The population of a country , i.e., Human Resources is the most important and only active component of production . Besides , it is the ultimate beneficiary of all economic developments, progress and prosperity When the population is excessive , the per capita income is low and so the standard of living is also very poor. The poor living standard makes a person less efficient . The lower efficiency of labour hinders the very progress of the nation. 
Total number of persons, i.e., male , female and children constitute the 'Absolute Population.' But when the available resources are not sufficient to fulfill the requirements of the population and exploitation of natural resources is not adequate to support the population , then the population becomes Excessive. This is called Overpopulation.This is very distinctly reflected in the low standard of living. On the contrary,when all the resources of a country including the human power are in th…

Causes of Poverty

Poverty In India 

The  Rangarajan committee redraws poverty line in urban regions at Rs 47 a day, Rs 32 in rural regions. ... This is much greater than the Tendulkar Committee's suggested Rs 816 a month (Rs 27/day). The percentage of poor people in India in absolute terms stood at 36.3 crore in 2011-12, down from 45.4 crore in 2009-10, according to the Rangarajan panel. The problems of poverty and unemployment are interrelated and in fact form a vicious circle. India's problem of poverty has been a socio-economic one and it is continuing since pre-Independence. Most of the population depends on agriculture , which usually leads to low per capita income. 
The development of industries and tertiary sectors has not progressed as rapidly as population has increased . Thus these sectors could not create opportunities for increasing population and the surplus labour from agriculture. The ultimate .outcome was the increase in dependency on agricultural sectors.

 Poverty Essay

Solstice and equinox

Solstice and equinox
The  earth has two main motions :

1. Rotation        2. Revolution

The Axis of the earth , which is an imaginary line makes an angle of 66 1/2 ° with its orbital plane.The plane which is formed by the orbit is known as the orbital plane . The earth receives light from the sun .Due to the spherical shape of the earth , only half of it gets lights from the sun at a time. The portion facing the sun experience day while other half away from the Sun experiences night. The Circle of Illumination is a circle that divides the day from night on the globe. The circle does not coincide with the axis .

MUST READ : Unemployment Rate

Rotation The earth rotates around its axis . The axis is an imaginary line passing through the centre of the earth. The earth completes one rotation in 23 hours , 56 mins , 4.09 seconds to be exact .The earth rotates from west to east . This period of rotation is called as the Earth day.
Rotation of earth There are several  effects of the rotation o…

Solar System

Solar system definition The sun along with eight planets , asteroids, and comets comprise the solar system. Such kinds of  planets which have greater densities known as inner or terrestrial planets . e.g . Mercury , Venus , Earth , and Mars and outer planets which have lower densities are Jupiter , Saturn , Uranus and Neptune.
The Sun The sun lie in the centre of the solar system.
The sun is made up of extremely hot gases mainly hydrogen..
The sun is 10^9  times bigger than the earth and weighs 2× 10^27 tonnes.

MUST READ : Geologic Timescale

The sun is approximately 150 million km away from the earth . The light from the sun reaches the earth in about 8 minutes.
The shining or glowing surface of the sun is called Photosphere . Above the Photosphere is red coloured Chromosphere . Beyond the Chromosphere is the Corona  visible during eclipses.
Also read :The making of Indian constitution

The temperature of the photosphere is about 6000℃  and that of the Chromosphere is about 32400 ℃ .The Sun…

Soil and Soil Conservation

Soil Soil is the uppermost layer of the earth crust which are rich in organic and inorganic matter. It takes thousand of years to form fine particles of soil by the continuous action of natural agent like wind , rain, sun's heat etc on the parent rocks. The breaking down of the parents rock into smaller one by physically or chemically is termed as weathering of rocks .

Land of India can be devided into plains, mountains and plateaus. About 43% of land is plain and is available for crop farming. 30 % of land is mountainous which provide forest and wildlife. About 27 % of land has plateaus which contain minerals, forests.
Types of soil Alluvial soil and it's formation These soils are formed by the deposition of rivers. It covers 40 % of the land area. Alluvial soils have been brought down and deposited by three great himalayan rivers , Sutlej, Ganga and  Brahmaputra and their tributaries.
Location :  They are mainly found in Northern plains, through a narrow corridor in Rajastha…

Civil Rights Movement

Civil rights movement summary
The Civil Right movement was a battle for social equity for Blacks to gain equal rights in the United States during the 1950s and 1960s. The Civil War had authoritatively overturned subjugation, but it did not stop black oppression— they continued to persevere through the overwhelming impacts of prejudice, especially in the South.
African Americans had everything against them by the mid-twentieth century that anyone could need of bias and viciousness. They assembled and began Battle together with numerous whites, an unusual battle for correspondence that spread over two decades

Jim Crow Laws

African Americans had everything against them by the mid-twentieth century that anyone could need of bias and viciousness. They assembled and began Battle together with numerous whites, an unusual battle for correspondence that spread over two decades.

In 1868, the fourteenth Amendment to the Constitution gave blacks equivalent assurance under the law. In 1870, the fi…