{"id":48572,"date":"2024-02-09T08:56:46","date_gmt":"2024-02-09T03:26:46","guid":{"rendered":"https:\/\/www.aplustopper.com\/?p=48572"},"modified":"2024-02-09T12:52:49","modified_gmt":"2024-02-09T07:22:49","slug":"isc-geography-question-paper-2012","status":"publish","type":"post","link":"https:\/\/www.aplustopper.com\/isc-geography-question-paper-2012\/","title":{"rendered":"ISC Geography Question Paper 2012 Solved for Class 12"},"content":{"rendered":"

ISC Geography Previous Year Question Paper 2012 Solved for Class 12<\/h2>\n

PART-I (Compulsory)<\/strong>
\nAnswer all questions.<\/p>\n

Question 1. [20]
\n(i) India\u2019s position in the Indian Ocean is paramount. Give two reasons to justify the given statement.
\n(ii) Study the cross-section given below which represents the basin of the Indo-Gangetic plain.
\n(a) Name the features B, C and D in the cross-section.
\n(b) Which layer of sediments among the above features is new and fertile.
\n\"ISC
\n(iii) The rivers of North India are Antecedent in nature. Explain with an example.
\n(iv) Differentiate between Barind and Bhur with reference to the Indus-Ganga-Brahmaputra Plain.
\n(v) What is meant by virgin vegetation ? Name any two regions in India where such vegetation occurs.
\n(vi) How is arithmetic density of population different from physiological density of population ?
\n(vii) Delhi has a population density of 9,340 persons per sq. km. which is much higher than the national average of 325 persons per sq. km. Explain why.
\n(viii) Define cultivable waste. Give any one reason for its existence.
\n(ix) Name any two strategies adopted to usher in the second Green Revolution in India.
\n(x) India is richly endowed with a variety of minerals. State two reasons in support of this statement.
\nAnswer:
\n(i) Indian Ocean is the only ocean in the world which has been named after a country (India), this is the biggest proof of the prominence enjoyed by India in early days when oceans were given their names. liven today India\u2019s position in the Indian Ocean is paramount as :
\n(a) India stands at the head of the Indian Ocean at the very centre of the Eastern Hemisphere commanding trade routes running in all directions.
\n(b) India commands an important strategic position on the globe with respect to trade as well as social cultural interaction. Economically and culturally India had major contacts with outside world in the last two millennia via Indian Ocean, no other country has as a long a coast line on this ocean as India has.<\/p>\n

(ii) (a) \u2018B\u2019 is Shivalik hills.
\n\u2018C\u2019 is Plains of new fertile alluvial-Khadar.
\n\u2018D\u2019 is Plains of older coarse nodules of alluvium-Bhangar.
\n(b) C is the sediment deposit which is new and fertile.<\/p>\n

(iii) Many of the Himalayan rivers which existed even before the Himalayan ranges were uplifted. The gorges of the Indus, the Satluj, the Alakananda clearly indicate that these rivers are older than mountains. During the upliftment of Himalayas, their banks rose steeply while the beds went lower, thus cutting deep gorges in the Himalayas. Thus, the rivers of North India are typical examples of antecedent drainage.<\/p>\n

(iv) Indo-Gangetic plain is a flat and featureless plain which has its own diversities of relief. Keeping their diversities in view, the plain can be divided in four divisions: The Bhabar, the Tarai, the Bhangar and the Khadar.<\/p>\n

The Bhangar is an area which is composed of old alluvium and forms the alluvial terrace above the level of the flood plains. Bhangar area also has some striking differences in the local relief.<\/p>\n

(a) One such difference is found in the deltaic region of Bengal, it has extensive laterite formation in the Bhangar known as \u201cBarind.\u201d.
\n(b) \u201cBhur\u201d is another such difference found in upper Ganga-Yamuna doab. Bhur has been formed due to the weathering of soft fine grained topsoil, where only the coarse grained soil is left behind.<\/p>\n

(v) Virgin Vegetation are often biodiversity hotspots because these areas are rich in plant and animal species.
\nThe Nilgiris in Western Ghats and Gulf of Mannar in Tamil Nadu are best examples.<\/p>\n

(vi) The arithmetic density of population is different from physiological density of population as :
\n(a) Arithmetic density is the ratio of total population to the total area of the country or a part thereof. For example, the total population of India according to 2001 census is 1028.7 million living on a total area of 3.17 million square kilometres (excluding the area of Jammu and Kashmir illegally occupied by Pakistan and China) thus, the arithmetic density of India, according to 2011 census is 372 persons\/km2<\/sup>. The arithmetic density of population of India in 2001 is :
\n\"ISC
\n=\u00a0\\(\\frac { 1028.7 }{ 3.17 } \\)
\n= 325 persons per sq.km.
\nIt is most simple and widely used all over the world but it is a \u2018crude measure\u2019.<\/p>\n

(b) Physiological Density is different to Arithmetic density as physiological density is the ratio of total population to the cultivated area of the country. For example : The physiological density of India, according to 2011 census is 1594 persons\/km2<\/sup>.
\nAccording to 2001 census, the total population of India is 1,02,87,37,436 and the total cultivated area in the country is 14(28,190 sq km, therefore, the physiolo-gical density is :
\n\"ISC
\n=\u00a0\\(\\frac { 1,02,87,37,436 }{ 14,28,190 } \\)
\n= 720 person per sq km.
\nThis is a very useful measure for an agricultural country like India.<\/p>\n

(vii) According to 2011 census, Delhi\u2019s population density is 11,297 persons per \u00a0km2<\/sup>. The high population density is mainly owing to the large-scale in migration that was taken place. Delhi, being the largest commercial center, attracts huge chunks of population from adjoining areas. Rapid growth and development of key industries such as IT, hotels, banking, media and tourism has absorbed the migrants resulting in high density.<\/p>\n

(viii) Cultivable waste is the land available for cultivation but not used for cultivation for one reason or the other. This land has been abandoned for some reasons such as lack of water, salinity or alkalinity of soil, soil erosion, waterlogging, unfavourable physiographic position, human neglect or deficiencies occurred in soil due to the faulty agriculture practices.<\/p>\n

(ix) (a) Micro-irrigation system.
\n(b) Organic farming.<\/p>\n

(x) India is richly endowed with a variety of minerals and diverse geological formations. The following two points illustrate this :
\n(i) Development of Mining : India has huge population and mining can be an important activity to absorb large labour force. India needs to develop efficient technology to avoid waste and to work the mines economically.
\n(ii) Political Influence : Existence of mineral resources was one of the greatest factors responsible for emergence of imperialism and colonization.<\/p>\n

Question 2. [10]
\nOn the outline map of India provided :
\n(a) Mark and name the Trans-Himalayan range that has the highest peak in India.
\n(b) Shade and name the peninsula that lies between the Gulf of Kachchh and the Gulf of Khambhat.
\n(c) Shade and name the coastal plain that is characterized by many estuaries.
\n(d) Name and trace the course of the river on which the Hirakud dam has been built.
\n(e) Print LAR over a region that experiences a low annual range of temperature.
\n(f) Shade and name the state with the lowest Index of Concentration according to 2001 census.
\n(g) Print T over one important tea growing region to the north of the Tropic of Cancer.
\n(h) Draw the longest arm of the Golden Quadrilateral and mark and name any one of its terminal towns.
\n(i) Mark and name the port that was built to replace the Karachi Port which became a port of Pakistan.
\n(j) Mark and name the public sector oil refinery located in Bihar.
\nAnswer:
\n\"ISC
\n(a) Trans-Himalayas range\u2014Great Himalayas with the highest peak, Kanchenjunga.
\n(b) Kathiawar peninsula.
\n(c) Konkan coast has many estuaries.
\n(d) Hirakud dam has been built on Mahanadi.
\n(e) Coastal plain of west have low annual range of temperature.
\n(f) Sikkim.
\n(g) Important tea growing region\u2014Assam.
\n(h) The longest arm of Golden Quadrilateral is from Chennai to Kolkata with its terminal town Visakhapatnam.
\n(i) Port Mohd. Bin Qasim, 35 km. east of Karachi city.
\n(j) \u201cBarauni\u201d in Bihar.<\/p>\n

PART-II<\/strong>
\nAnswer any four questions.<\/p>\n

Question 3.
\n(a) The diagram below represents the northwestern part of the Peninsular Plateau :
\n\"ISC
\n(i) Identify the dotted region. Name the predominant rock that constitutes the region.
\n(ii) Label the mountain range shown as X and the rivers RltR2 and R3.<\/p>\n

(b) The diagram given below shows the regimes (annual fluctuation in discharge) of two hypothetical rivers X and Y. [4]
\n\"ISC
\n(i) Identify which of the two rivers represent the regime of a peninsular river. Give a reason for your answer.
\n(ii) Name the peninsular river which is an exception to the general pattern. Why is it an exception ?
\n(c) (i) Why are deciduous forests of India considered economically important? [1]
\n(ii) Give two reasons to explain the decrease in forest cover in recent years. [2]
\nAnswer:
\n(a) (i) Dotted region is Malwa Plateau region. Hard rocks like granite are the predominant rocks which constitutes it.
\n(ii) Mountain range X is Aravali Range.
\nR1<\/sub> is R. Chambal.
\nR2<\/sub> is R. Betwa.
\nR3<\/sub> is R. Yamuna.
\n\"ISC<\/p>\n

(b) (i) River X represents the regime of a peninsular river, because peninsular rivers are seasonal rivers and they have more water in the months of rainy seasons, which lasts from June to November.
\n(ii) Peninsular rivers flow from west to east originating from the Western Ghats and falling into Bay of Bengal, but Narmada and Tapi are two exceptions. These rivers flow from east to west direction falling into Gulf of Khambhat.<\/p>\n

(c) (i) The deciduous forests of India are economically important because :
\nThough it is a mixed forest but single species of trees grow in patches favouring the exploitation of forest resources. These forests are not too dense and therefore are easily accessible. Moreover, these forests provide valuable wood which is commercially very important such as sal, teak, shisham, sandalwood and khair etc.
\n(ii) The forest cover in recent years has decreased due to:<\/p>\n

    \n
  1. Thoughtless and rapid exploitation of forest resources as per demand of increasing population.<\/li>\n
  2. For acquiring land for agriculture, industries and construction purposes, the forests have been cut down recklessly.<\/li>\n<\/ol>\n

    Question 4.
    \n(a) Define population growth and population growth rate. [2]
    \n(b) Differentiate between crude literacy rate and literacy rate. [2]
    \n(c) How does census of India differentiate between statutory towns and census towns ?[2]
    \n(d) (i) Explain the term urban sprawl. Why is it considered to be a problem of urbanization ? [2]
    \n(ii) What is a conurbation ? Give two examples. [2]
    \nAnswer:
    \n(a) Population growth means the difference between the natural birth rate and death rate of an area\/country When the birth rate is higher than the death rate it is called positive growth because the population increases, but when the birth rate is low’er than the death rate, then it is negative growth because ,the population decreases.<\/p>\n

    But population growth rate is slightly different to the population growth, it is a change in the number of people living in a particular area between two given points of time. The net change between two points of time is expressed in percentage and is described as the growth rate of population.<\/p>\n

    (b) Crude Literacy Rate : Up to 1981 census, literacy rate was calculated by dividing literate persons by total population and multiplying by hundred. This was \u2018crude literacy rate\u2019 and was calculated by using the following formula :
    \n\"ISC
    \n(In this total population means 0 age to the old age).
    \nLiteracy Rate : The literacy rate becomes more meaningful if the sub-population in the age group 0-6 is excluded from the total population, so it was decided in 1991 to use the term literacy rate for the total population relating to seven years and above. The same concept has been continued in 2001. It is a better measure of literacy and is calculated by the following formula:
    \n\"ISC
    \nLiteracy rate is more meaningful, accurate in finding out the percentage of literate people than the crude literacy rate.<\/p>\n

    (c) In census of India 2001, two types of towns were identified:
    \n(i) Statutory Towns: All places with a municipality, corporation. Cantonment board or notified town area committee, etc. so declared by a state law, are known as statutory towns.
    \n(ii) Census Towns: Places which satisfy the following criteria :<\/p>\n