10th social Science Geography unit-3 Notes

 10th social Science Geography unit-3 Notes
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10th social Science History Chapter-5 -  Social and Religious Reform Movements in the 19Th Century Book solutions Question and answer. You can Download PDF Class 10th Social Science notes,Guide for tamil medium and English medium. Tamil nadu samacheer Kalvi New syllabus 2020-2021 | Alex Maths

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10GEOGRAPHY  UNIT -3 COMPONENTS OF AGRICULTUREGEOGRAPHYBOOK EXERCISE    Choose the Correct AnswerI 


1.  The soil  which is rich  in iron oxides is _________. 
a)  Alluvial 
b)  Black
 c)  Red
 d)  Alkaline
  Answer:  c) Red 
2.    Which of the  following organization  has  divided the  Indian soils  into  8  major groups?
a)  Indian Council of Agricultural Research
 b)  Indian Meteorological Department
 c)  Indian Institute of Soil Science
 d)  Soil Survey of India
 Answer:  a) Indian Council of Agricultural Research 
3.  The soils  formed by the rivers are __________. 
a)  Red soils 
c)  Desert soil 
b)  Black soils 
d)  Alluvial soils
Answer:  d) Alluvial soil  

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 4.  __________ dam is the highest gravity in India.
 a)  Hirakud dam 
 b)  Bhakra Nangal dam
c)  Nagarjuna Sagar dam  
d)  Mettur dam
Answer:  b)BhakraNangaldam
5.  __________ is a cash  crop. 
a)  Cotton 
b)  Wheat
 c)  Rice 
d) Maize
Answer:  a) Cotton
6.  Black soils are also called as __________. 
a)  Arid soils 
c)  Regur soils
 b)  Saline soils
 d)  Mountain soils  
Answer:  c) Regur soils
7.  The longest dam in the world is __________.
a)  Mettur dam
 c)  Hirakud dam 
b)  Kosi dam 
d)  Bhakra-Nangal dam
 Answer:  c)  Hirakud dam

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8.  The leading producer  of rice in India is __________. 
a)  Punjab 
c)  Uttar Pradesh
 b)  Maharashtra 
d)  West Bengal 
Answer:   d) West Bengal
9. Which crop is called as ‘Golden Fibre’ in India?
a) Cotton
b) Wheat
 c) Jute 
d) Tobacco 
Answer: c) Jute
10.  The state which leads in the production of coffee is __________.
a) West Bengal 
b) Karnataka 
c)Odisha 
d) Punjab  
Answer: b) Karnataka

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Consider the given statement and choose the correct option from the given below ones

 1.  Assertion  (A):Horticulture involves cultivation of fruits,vegetables,andflowers. 
Reason (R)  :India ranks first in the world in the project, banana, and citrus fruits. 
a)  Both (A) and (R) are true and (R) explains (A) 
b)  Both (A) and (R)are true: (R) does not explain (A) 
c)  (A) is correct (R) is false 
d)  (A) is false (R) is true    
Answer:  c) (A) is correct  (R) is false 

Question 2.  Assertion  (A) :    Alluvial  soil  is  formed by  the  deposition of eroded and decayed materials brought by the rivers. 
Reason (R)  :  Paddy and wheat are grown well in the soil. 
a)  Both (A) and (R) are true and (R) explains (A) 
b)  Both (A) and (R)are true and (R) does not explain (A)
 c)  (A) is correct (R) is false
 d)  (A) is false (R) is true    
Answer:  A) Both (A) and (R) are true and (R) explains (A)


 Pick the odd one out
 Question 1. a)  Wheat       b)  Rice 
      c)  Millets.    d)  Coffee
 Answer:  d) Coffee  ( Reason - Cash crop)
Question 2. a)  Khadar    b)  Bhangar  c)  Alluvial soil.           d)  Black soil
Answer:  b) Black soil (Reason – Suitable for cotton) 
Question 3. a)  Inundational canals  b)  Perennial canals  c)  Tanks     d)  Canals
 Answer:  c) Tanks (Reason – water can be 

sotres)
  Answer briefly
Question 1.Defines oil.
Soil is one of the most important natural resources. 
It is the uppermost layer of the land surface.
Usually, it is composed of minerals, organic matter, living organisms, air and water.
It is generally formed by the weathering of rocks under different conditions.

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Question 2.name the types of soil found in India
Answer:
The eight types of soil found in India 
re-Alluvial soil
Forest and Mountain soil
 black soil
 arid and desert soil
Red soilSaline and alkaline soil 
late rite soil
Peaty and marshy soil

Question 3. State any two characteristics of black cotton soil.
Answer :
Black soil is derived from the basalts of Deccan trap.
It is black in colour due to presence of titanium and iron.
Its nature is sticky when wet.
Answer 4. What is Multipurpose project?
Answer:
Itisascientificmanagementofwaterresourcesinourcountry.
The construction of dams across rivers is aimed at many purposes.
 It helps in irrigation, hydro power generation, water supply for drinking and industrial purpose,controlling floods,development of fisheries,navigation,etc.
These types of dams are called Multi-purpose projects.

Queation 5.define articulated.
Answer:
        Agriculture is the process of producing food,fodder for cattle,fodder for cat other desired products and the raising of domesticated animals (livestock).

Question 6. State the types of agriculture practices in India?
 The types of agriculture practices in India are -Subsistence farming Dry farmingShifting agriculture mixed farming agriculture intensive farming Terrace cultivation

Question 7.name the seasons of agriculture in India? 
Answer: 
          The seasons of agriculture in India are Kharif Season June – September 
Rabi Season Zaid Season October – March April - June 8.  
Mention  the plantation crops of India. 
Plantation crops are cultivated for the purpose of exports. 
These are cultivated in large estates on hilly slopes. 
Tea, coffee, rubber and spices are the major plantation crops of India. 

9.  What do you mean by  livestock? Live stock is commonly defined as domesticate such as goats,buffaloes,sheep, pigs,  etc.,  raised in  an  agricultural  setting  to produce labour and  commodities such a as meat, egg, milk, fur, leather and wool. 

Question 10.write a brief note on the categories of fish? 
 Marine or Sea fisheries
include coastal offshore and deep sea fisheries mainly on the continental  self up  to a depth of 200  m.  Among  the coastal states,  Kerala  leads in the marine fish production in India. 
inland or freshwater fisheries:  is  practised in  rivers,  lakes, canals,  reservoirs, ponds,tanks,etc.,AndhraPradesh is the leading freshwater fisheries produce in India. 
  Give reasons for the following topics
1.  Agriculture is the backbone of India. ?
Reasons : Agriculture is  the backbone  of India  because majority of the India’s population  are dependent on agriculture, its allied activities and agro-based industries India.
*according to2011 agricultural census of India,an estimated 61.5% of the people are dependent on agriculture. 

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Question 2.  Rain water harvesting  is necessary. 
Reasons :  Rain water harvesting is important because To conquer the deficiency of surface water to meet our demands. 
To capture the decline in ground water levels. To  improve the accessibility  of ground  water at particular  place  and  time and  use rain water for supportable advancement. 

Question 3.  Small farms are predominant in India. 
Reasons : The farmers  are dependent on  land,  water, inputs,  credits, technology and  markets. Itisnotpossibleforthefarmerstogettheabovebenefits. 
The  income of  the famers is  meagre. They  are unable  to  invest everything  on  the farms.
 So, small farms are predominant in India
  Answer in a Paragraph
 
Question 1.    State  the  types  of  soil in India  and explain the characteristics  and distribution  of soil.
Answer:
       Soil  is one of the most important natural  resources.  It is the uppermost layer of the land surface. It is generally  formed by the weathering of rocks  under different conditions.  The eight types of soils and its characteristics are 
Alluvial soils: 
It is the sediments deposited by streams and rivers. 
The  two  varieties  of   Alluvial  soils  are Khadar  and  Bhangar.    Khadar  is  light  coloured and Bhangar dark in colour. 
Its chemical  properties are –  rich  in  potash,  phosphoric  acid  and  carbon  compounds.  But, poor in nitrogen.
 Sandy, loam, silt and clay are its nature. 
The  soil  is  distributed in  ganga and  Brahmaputra  river valleys,  plains  of Uttar Pradesh, Punjab, Haryana, West Bengal and Bihar. 
 Black soils: 
Black  soil  is  derived  from  basalts of Deccan  trap.  It is  black  in  colour  due  to presence of titanium and iron. 
It consists of  calcium  and  magnesium  carbonates, iron,  aluminium,  lime  and magnesia. But, poor in nitrogen phosphoric acid and humus.
 Its nature is sticky when wet and high degree of moisture retentive.
 This  type  of  soil  found  in  Malwa  plateau,  Kathiawar  peninsula,  Telangaga  and Rayalaseema. 
Red Soil: 
It is formed  due  decomposition of  ancient  crystalline rocks  like granites and gneisses.
 Itisrichinmineralssuchasironandmagnesiumanddeficientinnitrogen,humus, phosphoric acid and lime.
 Light texture, porous friable presence of limited soluble salts.
 Red  soil  is  found  in  Eastern  part  of  Deccan  plateau,  southern  states  of  Kerala, Tamilnadu, Kerala and Chota Nagpur Plateau. 
Laterite soils:
 This soil is formed by the process of leaching.
 This soil is composed of hydrated oxides of iron and aluminium. 
Its nature  is  more  acidic  on  higher  areas and  poor  in  high  level,  clay  and  easily retains moisture. 
It is  found  in  Assam  hills,  hill  summits of  Kerala  and  Karnataka  and  Eastern  ghaBarrage
Forest and Mountain soils: 
 Due to mechanical  weathering  caused by  snow,  rain,  temperature variation  are the reasons for the formation of these soils. 
Theyaredeficientinpotash,phosphorus and lime. 
Their nature is  light,  sandy  and  thin.   Their character  changes with the parent rocks.  Very rich in humus, slow decomposition makes it acidic. 
These soils  found  in  the  forest belts of  Jammu  and  Kashmir,  Himachal  Pradesh, Sikkim and Eastern and Western Ghats. 
Arid and desert soils: 
It contains  high  percentages of  soluble  salts,  alkaline  with  varying  degree of  calcium carbonate and is poor in organic matter. 
The soils are light in colour, low humus and friable structure and low in moisture.
 These soils are found Rajasthan, Northern Gujarat and Southern Punjab.
 Saline and alkaline soils:
 It is  formed  due  to  ill  drainage.    Salts are  transferred  from  subsurface to  the  top soil by the capillary action.
 The soil liberates sodium, magnesium and calcium salts and sulphurous acid. It consists of un decomposed rock and mineral fragments. 
The  soils  are found  in  Andhra  Pradesh  and  Karnataka,  Haryana,  Punjab,  Rajasthan and Maharashtra. 
Peaty and marshy soils: 
It is formed in humid regions from the organic matter. 
Thesoilisdeficientinpotashandphosphate.Containconsiderableamountof soluble salts. 
The soil  is  found  in  some parts  of Kerala,  coastal areas of Odisha  and  Tamilnadu and Sundarban regions.

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Question 2.  Write about any two  Multipurpose projects of India. 
The  construction  of dams  across rivers is  aimed  at many  purposes.    It helps  in  irrigation, hydro  power generation,  water  supply  for drinking  and  industrial  purpose,  controlling f loods,developmentoffisheries,navigation,etc.these types of dams are called multi purple projects. 
i) Bhakra-NangalProject: 
The most ambitious project  to convert  large barren semi-arid  region  of North  West India into lush green fertile agricultural field was hairs an gal.Itwas one of the largest multipurpose Indian projects constructed over the river Sutlej. After construction, Bhakra-Nangal  became one  of the highest  dams  in  the world.  The  entire project is  divided  into  two separate divisions.    They  are-   
  i)    The Bhakra Dam and  
 ii)  The Nangal Barrage
TheBhakraDamhasthecapacitytostoremorethan10,000 million water. This lake is popularly known as Govind Sagar Lake.
     Nangal  dam is located 13km downstream of Bhakra.   The combined  length  of Bhakra-Nangal Canal exceeds 1000 kms. 
    Apart from  the two main  dams  storage,  this  project comprises several  hydro projects. 
Nearly,almost all of Punjab,large areas of haryana and Rajasthan are be benefited directly by the Bhakra Nangal multipurpose project.
 ii)  Hirakud  Project :
 Mahanadi  is  the  lifeline  of  Orissa.    It  enters Orissa  from  the  highland  of  Naraj.  This  rapid  fall  from considerable  height  provoked planners to erect  this monumental dam  at Hirakud.    It is  the longest dam  in  the world  and  irrigates 1,41,600  sq.  km.  Its objectives are
Harnessing ample by del power from swift flow water. Control of occasion a of poor and resultant havoc. 
  Irrigation through canals  to large areas of Puri and  Cuttack districts.
   Improvement of water transport through greater navigability. 
    Overall  economic  development  of  the  area  by  providing  employment  at  the project. 
  Rapid  industrialization  of  the area  through  the stable and  assured  power supply. 
3.  Bring out the characteristics of Intensive and Plantation farming. Agriculture is the process of producing food for people,fodder for cattle,fibre and many other desired products.  A variety of farming practises are followed in India. Intensive farming: Intensive farming is an agricultur alinten suffixation and mechanization system of agriculture.
 It aims to maximize yields  from  available  land  through  various  means such as using pesticides and chemical fertilizers. This  method  is applied  to raise  in  livestock  with  billions  of animals  such  as  cows, pigs and chickens being held indoors. Intensive farming  is  practiced  in  Punjab,  parts of Rajasthan,  Uttar Pradesh  and Madhya Pradesh in India. 
Plantation agriculture : 
It is a formof commercial farming where crops are grown for profit. 
Countries that have plantation agriculture usually  experience  high  annual temperatures and receive high annual rainfall.
 Some  of the important plantation  crops  are  tea, coffee,  cocoa, rubber,  cotton,  oil palm, sugarcane, bananas and pineapples.
 The  characteristic  features of this  type of farming  are large estates  or plantations, largecapitalinvestment,scientificmethodsofcultivation,singlecropspecialisation, cheap labour  and  a good  system  of transportation and  markets  for the export  of the products.
 Plantation  agriculture is  followed in  Kerala,  Karnataka,  Himachal  Pradesh,  Jammu & Kashmir and most of the Eastern States of India. 

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