bca part-ii(annual)

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    PUNJABI UNIVERSITY PATIALA

    ORDINANCES

    AND

    OUTLINES OF TESTS,

    SYLLABI AND COURSES OF READING

    FOR

    BACHELOR OF COMPUTER APPLICATIONS (B.C.A.)

    PART-II (ANNUAL)

    FOR 2011, 2012 & 2013

    EXAMINATIONS

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    BACHELOR OF COMPUTER APPLICATIONSOUTLINE OF PAPERS AND TESTS

    B.C.A. SECOND YEAR EXAMINATION2011, 2012 & 2013 EXAMINATIONS

    CODE TITLE OF PAPER MAXIMUM MARKS

    Hours per University Internal Marks Max. TimeWeek Examination Assessment Allowed

    BCA-201 General English 4 80 20 100 3 Hrs.(Communication Skills)

    BCA-202 Punjabi / 4 80 20 100 3 Hrs.Punjab History and Culture

    BCA-203 Data Structures 4 80 20 100 3 Hrs.

    BCA-204 Discrete Mathematics 4 80 20 100 3 Hrs.

    BCA-205 Object Oriented 4 80 20 100 3 Hrs.Programming using C++

    BCA-206 Computer Network, 4 80 20 100 3 Hrs.Internet & its Applications

    BCA-207 Software Lab-III 4 50 -- 50 3 Hrs.(Programming Lab in C++)

    BCA-208 Software Lab-IV 4 50 -- 50 3 Hrs.

    (Data Structures)

    Total 700____________________________________________________________________________________BCA - 209 Environmental Studies (Qualifying Paper) (in case the students has already cleared thecourse of Environment Studies in BCA-I He/she need not take the course)Note :

    1. The break up of marks for the practical will be as underi. Lab Record 10 Marksii. Viva Voce 10 Marks

    iii. Program Development and Execution 30 Marks

    2. The break up of marks for internal assessment for theory papers will be as under :i. One or two tests out of which minimum on best will be

    considered for assessment.10 Marks

    ii Assignments/Quizzes 5 Marksiii Attendance, Class participation and behaviour 5 Marks

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    BCA-201: GENERAL ENGLISH (COMMUNICATION SKILLS)

    Maximum Marks : 80 Maximum Time : 3 Hrs.Min Pass Marks: 35% Lectures to be delivered: 90 Hours

    COURSE CONTENT

    Two Literary Texts 40Composition 15Grammar and Vocabulary 25

    A) Text Prescribed1. R.K. Narayan: The English Teacher2. Jagdish Chander (OUP) (ed.): Short plays

    B) Texts Prescribed for Grammar and Vocabulary3. W. Standard Allen: Living English Structure (Orient Longman)4. Wilford D. Best: The Students Companion (Rupa)

    Testing:

    Q.1.(a) One Essay-type questions with an internal alternative on theme, incident and character from theEnglish Teacher. The answer should not exceed 250 words.

    5 marks(b) Five short note to be attempted out of the given eight from the English Teacher. Each not

    to be attempted in thirty words. 5 marks(c) Meanings of 5 words/phrases out of the given, eight from the English Teacher, and use

    thereof in sentences. (1/2+1/2)*5=5 marksQ.2.(a) One essay type question with an internal alternative on theme. Narrative, incident or

    character from Short Plays. 5 marks(b) Five short notes to be attempted out of the given eight Short Plays. Each Note to be

    attempted in 50 words. 2*5=10 marks

    Q.3. Comprehension of one/two passage of about 250 words from either The Short Plays or the EnglishTeacher.

    (a)Five questions to test comprehension of the passage. 1*5=5 marks(b)Meanings of 5 words/phrases italicised in the passage and use thereof in

    illustrative sentences. (1/2+1/2)*5=5 marksQ.4. An essay of about 300 words on one out of the four given topics. 8 marksQ.5. Making a prcis of a given passage of about 250 words and providing a suitable title.

    7 marksQ.6. The prescribed text is W. Standard Allen: Living English Structure (Orient Longman).

    The Candidates shall be examined on the material included in the Exercises from 31.1. to 46.10.This will carry 12 marks. They will also be examined on the material studied in BCA Part -II. This willcarry 3 marks. The whole material shall be divided into five parts each carrying three marks as

    follows.(a) Exercise 1.1 to 30.3 (B.C.A. Part-II Revision)(b) Exercise 31.1 to 32.4(c) Exercise 33.1 to 38.4(d) Exercise 39.1 to 44.10(e) Exercise 45.1 to 46.10 3 *5 = 15 marks

    Candidate shall be required to attempt 6 sentences each out of 10 sentences to be set in eachpart. Each sentence shall be of mark.

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    VOCABULARY

    ThePrescribed text is Wilfred D. Best: The students Companion (Rupa).The candidates shall be examined on the following material:

    (a) Single Words or phrases and groups of words:(1) Words pertaining to death(2) Words pertaining to Nature Study(3) Opposites(4) Negatives(5) Scientific Instruments(6) War Words(7) Literary(8) Miscellaneous 5 marks

    (b) Formation of nouns. Adjectives. Verbs and Adverbs.

    5 marks

    The examiner shall restrict himself to the prescribed text, in Part (a) the candidate shall respondto 10 out of 15 one-word/one-line tests, each carrying half a mark.

    In Part (b) the candidates shall complete 10 out of 15 sentences with appropriate part of speechof a word given in brackets at the end of each sentence. Each response will carry half a mark.

    IMPORTANT

    The examiner shall also give a clear instruction to the candidates to attempt these questions onlyat one only place and only once. Second or subsequent attempts unless earlier attempts have beencrossed out, shall not be evaluated.

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    BCA-202 (B)PUNJAB HISTORY AND CULTURE

    (1000-1849 A.D.)(Special paper in lieu of Punjabi Compulsory)

    Maximum Marks: 80 Maximum Time: 3 Hrs.

    Minimum Pass Marks: 35% in the subject Lectures to be delivered: 75Hours

    (A) Instructions for the Paper setter:The question paper will consist of five sections: A, B, C, D and E. Sections A, B, C and D will have twoquestions from the respective sections of the syllabus and will carry 20% marks each. Section E willconsist of 5-10 short answer type questions, which will cover the entire syllabus uniformly and will carry20% marks in all.

    (B) Instructions for the Candidates:Candidates are required to attempt one question each from the section A, B, C and D of the questionpaper and the entire section E.

    SECTION A

    1. The Punjab under Turke-Afghan Sultans.2. The Punjab under the Great Mughals.3. Salient features of the Bhakti Movement and Sufism in The Punjab.

    SECTION B

    4. Guru Nanak Dev's teachings and impact on society.5. Development of Sikhism (1539-1606) with special reference to Sangat, Masand System,

    Compilation of Adi Granth and Martydom of Guru Arjan Dev.6. Martydom of Guru Teg Bahadur, Foundation of Khalsa by Guru Gobind Singh

    SECTION C

    7. Banda Bahadur and his achievement8. Sikh Struggle for Sovereignty in Punjab 1716 to 1767.9. Ranjit Singh's rise to power : his civil and military administration and relations with the British.10. The Anglo-Sikh Wars and Annexation of the Punjab.

    SECTION D

    11. Development of Punjabi Language and Literature classical writings and famous legends of thePunjab.

    12. Social life with special reference to position of women, fairs, festivals, folk music, dances and

    games in the Punjab.

    SUGGESTED READINGS1. Kirpal Singh (ed.), : History and Culture of the Punjab,Part-II, Patiala, 1990, (3rd edition).2. Fauja Singh (ed) : History of Punjab, Vol 1, Patiala, 19723. G.S. Chhabra : The Advanced History of the Punjab,Vol. 14. J.S. Grewal : The Sikhs of Punjab, The New Cambridge History of India, Hyderabad,

    1990.5. Khuswant Singh, A History of Sikhs, Vol. I, 1469-1837, Delhi 1991.6. G.C. Narang : Transformation of Sikhism, New Delhi, 1960 (5th edition).7. B. S. Nijjar : Punjab Under the Great Mughals,Bombay, 19618. Sukhwinder Kaur Dhillon : Religious History of Early Medieval Punjab,Delhi 1991.

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    BCA-203 : DATA STRUCTURES

    Maximum Marks: 80 Maximum Time: 3 Hrs.Minimum Pass Marks: 35% Lectures to be delivered: 90 Hours

    (A) Instructions for the Paper setter:The question paper will consist of five sections: A, B, C, D and E. Sections A, B, C and D will have twoquestions from the respective sections of the syllabus and will carry 20% marks each. Section E willconsist of 5-10 short answer type questions, which will cover the entire syllabus uniformly and will carry20% marks in all.

    (B) Instructions for the Candidates:Candidates are required to attempt one question each from the section A, B, C and D of the questionpaper and the entire section E.Use of non-programmable scientific calculator is allowed.

    SECTION ABasic concept and notations, data structures and data structure operations, mathematical notation andfunctions, algorithmic complexity, Big O notation and time space trade off.

    Arrays : Linear array, Representation of Linear array in memory, Traversing Linear array, Insertion anddeletion in an array, Multi-dimensional array : Row-Major Order, Column Major order, sparse matrix.SECTION B

    Stacks : Representation of stack in memory (Linked and sequential), Operations on stacks, Applicationsof Stacks : Conversion from infix notation to post fix notations, Evaluation of Postfix Notation, Matching ofParenthesis, Recursion, Tower of Hanoi.Queues: Representation of Queues in memory (Linked and sequential), Operations on queqes,Application of QueuesLinked list, representation of linked list using static and dynamic data structures. Insertion and deletion ofa node from a Linear linked list, Doubly linked list, Circular linked list. Application of linked lists.

    SECTION C

    Trees: Definitions and Basic concepts, Linked Tree Representation and representation in contiguousstorage, Binary Trees, Binary Tree Traversal, Searching, Insertion and Deletion in Binary Tree. BinarySearch Tree, Heap and Heap Sort Algorithm.Graphs: Definitions and Basic concepts, Sequential and linked Representation- Adjacency Matrix andAdjacency List. Operations on Graphs: Traversing a Graph using DFS and BFS.

    SECTION DSearching and sorting : Linear and binary search, Bubble Sort, Insertion Sort, Selection Sort, Merge Sort,Radix Sort and Quick Sort,Comparison of various searching and sorting algorithms.

    REFERENCES :

    1. Seymour Lipschutz Theory & Practice of Data Structures, McGraw Hill, 1988.

    2. Thomas Naps and Bhagat Singh", Introduction to Data Structures with Pascal", West Publishing.

    3. Tenenbaum, Y. Lanhghsam and A. J. Augenstein, Data Structures Using C and C++, Prentice

    Hall of India, 1990.

    4. E. Horowitz and S. Sahni, Data Structures with Pascal, Galgotia, 3rd Edition, 1991.

    5. Ah. A.V. Hopcraft J.E. and Ullman, J.D. The Design and Analysis of Computer Algorithms,

    Addison Wesley.

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    BCA-204: DISCRETE MATHEMATICS

    Maximum Marks: 80 Maximum Time: 3 Hrs.Minimum Pass Marks: 35% Lectures to be delivered: 90 Hours

    (A) Instructions for the Paper setter:The question paper will consist of five sections: A, B, C, D and E. Sections A, B, C and D will have twoquestions from the respective sections of the syllabus and will carry 20% marks each. Section E willconsist of 5-10 short answer type questions, which will cover the entire syllabus uniformly and will carry20% marks in all.

    (B) Instructions for the Candidates:Candidates are required to attempt one question each from the section A, B, C and D of the questionpaper and the entire section E.Use of non-programmable scientific calculator is allowed.

    SECTION ASet Theory: Sets, Type of sets, Set operations, Principle of Inclusion-Exclusion, Cartesian prodouct ofsets, Partitions, Minsets, Maxsets.Logic : Propositions, Implications, Precedence of logical operators, Translating English sentences into

    logical expressions, Propositional equivalence, Predicates and Quantifiers, Nested Quantifiers, Order ofQuantifiers.Principle of Mathematical induction.Counting : The Basics of counting, Pigeonhole principle, Permutations and combinations,..

    SECTION BRelations: Relations and diagraph, n-ary relations and their applications, properties of relations,representing relations, closure of relation, equivalence relation, operation on relations, partial ordering.Functions: Functions, One-to-one Functions, Onto Functions, Inverse and Composition of Functions,Floor Function, Ceiling Function.Growth of functions: Big-O Notation, Big-Omega and Big-Theta Notation.

    SECTION C

    Recurrence Relations: Introduction, Order and Degree of Recurrence relation, Solution of linearrecurrence relations, Homogeneous solution, particular solution, total solution, Generating functions.Lattice: Partially ordered sets (POSET), Lattices, Sublattices, Isomorphic lattices, Properties of Lattices,Special types of Lattices, Atom, DualityBoolean Algebra: Introduction, Boolean Expression and Boolean Functions, Identities of BooleanAlgebra, Duality, Disjunctive Normal Form, Conjunctive Normal Form, Design of Circuits.

    SECTION DGraphs: Introduction to Graph, Graph terminology, Representing graphs and Graph Isomorphism,Connectivity, Euler Paths and Circuits, Hamillonian paths and circuits, Shortest Path Problems, PlanarGraphs.Trees : Trees, labelled trees, Tree Traversal, Undirected trees, Spanning Trees, Minimum spanningtrees.

    REFERENCES :

    1. Discrete Mathematical Structures-Bernard Kolman, Robert C. Busby, Sharon C. Ross, 4th

    Edition, Pearson Education Asia.

    2. Discrete Mathematics-Richard Johnsonbaugh, 5th Edition, Pearson Education, Asia.

    3. Elements of Discrete Mathematics, Second Edition, Tata McGraw Hill.

    4. Discrete Mathematics, Seymon Lipschutz & Max Lans Lipson, Tata McGraw Hill.

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    BCA-205: OBJECT ORIENTED PROGRAMMING USING C++

    Maximum Marks: 80 Maximum Time: 3 Hrs.Minimum Pass Marks: 35% Lectures to be delivered: 90 Hours

    (A) Instructions for the Paper setter:The question paper will consist of five sections: A, B, C, D and E. Sections A, B, C and D will have twoquestions from the respective sections of the syllabus and will carry 20% marks each. Section E willconsist of 5-10 short answer type questions, which will cover the entire syllabus uniformly and will carry20% marks in all.

    (B) Instructions for the Candidates:Candidates are required to attempt one question each from the section A, B, C and D of the questionpaper and the entire section E.Use of non-programmable scientific calculator is allowed.

    SECTION A

    Evolution of OOP: Procedure Oriented Programming, OOP Paradigm, Advantages and disadvantages ofOOP over its predecessor paradigms.

    Characteristics of Object Oriented Programming: Abstraction, Encapsulation, Data hiding, Inheritance,Polymorphism, Code Extensibility and Reusability, User defined Data Types.Introduction to C++: Identifier, Keywords, Constants,Operators: Arithmetic, relational, logical, conditional and assignment. Sizeof operator, Operatorprecedence and associativity.Type conversion, Variable declaration, expressions, statements, manipulatorsInput and output statements, stream I/O, Conditional and Iterative statements, breaking controlstatements.

    SECTION B

    Storage Classes: Automatic, Static, Extern, Register.Arrays, Arrays as Character Strings, Structures, Unions, Bit fields, Enumerations and User defined types.

    Pointers: Pointer Operations, Pointer Arithmetic, Pointers and Arrays, Multiple indirections, Pointer tofunctions. Functions: Prototyping, Definition and Call, Scope Rules. Parameter Passing: by value, byaddress and by reference, Functions returning references, Const functions, recursion, functionoverloading, Default Arguments, Const arguments.

    SECTION C

    Pre-processor : #define, #error, #include, #if, #else, #endif, #ifdef, #ifindef, #undefType casting : static-cast, const-cast, dynamic-cast, reinterpret-cast.

    Classes and Objects: Class Declaration and Class Definition, Defining member functions, makingfunctions inline, Nesting of member functions, Members access control. this pointer. Union as spacesaving classes.

    Objects: Object as function arguments, array of objects, functions returning objects, Const memberfunctions.Static data members and Static member functions.

    SECTION D

    Friend functions and Friend classesConstructors: properties, types of constructors (Default, parameterized and copy), Dynamic constructors,multiple constructors in classes.Destructors: Properties, Virtual destructors. Destroying objects. Rules for constructors and destructors.Array of objects. Dynamic memory allocation using new and delete operators, Nested and containerclassesScopes: Local, Global, Namespace and ClassInheritance: Defining derived classes, inheriting private members, single inheritance, types of derivation,function redefining, constructors in derived class.

    REFERENCES:

    1. Herbert Schildt, The Complete Reference C++, Tata McGraw-Hill, 2001.

    2. Deitel and Deitel, C++ How to Program, Pearson Education, 2001

    3. Robert Lafore, Object Oriented Programming in C++, Galgotia Publications, 1994.

    4. Bjarne Strautrup, The C++ Programming Language, Addition- Wesley Publication Co.,

    2001.

    5. Stanley B. Lippman, Josee Lajoie, C++ Primer, Pearson Education, 20026. E. Balagurusamy, Object Oriented Programming with C++, Tata McGraw-Hill, 2001

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    BCA-206: COMPUTER NETWORKS, INTERNET AND ITS APPLICATIONS

    Maximum Marks : 80 Maximum Time: 3 Hrs.Min Pass Marks: 35% Lectures to be delivered: 90 Hours

    (A) Instructions for the Paper setter:

    The question paper will consist of five sections: A, B, C, D and E. Sections A, B, C and D will have twoquestions from the respective sections of the syllabus and will carry 20% marks each. Section E willconsist of 5-10 short answer type questions, which will cover the entire syllabus uniformly and will carry20% marks in all.

    (B) Instructions for the Candidates:Candidates are required to attempt one question each from the section A, B, C and D of the questionpaper and the entire section E.Use of non-programmable scientific calculator is allowed.

    SECTION - A

    Computer Networks: Uses of Computer Network, Network Hardware, Network Software, Goals and

    Applications of Computer networks, Structure of Computer Network: Point-to-point structure,Broadcasting structure.

    Reference Models: OSI Reference Model; TCP/IP Model, Comparative Overview of Two.SECTION - B

    Data Communication: Transmission media, Wireless communication, and the Telephone system,Introduction to cellular radio and communication satellite, Data Rate of Channel, Electromagneticspectrum.Switching : Circuit switching, packet switching, message switching.Multiplexing : FDM, TDM.

    SECTION - C

    Introduction to Internetworking Concepts, Repeaters, Routers, Bridges, and Gateways.MAC Protocols : Pure and slotted, Aloha, CSMA Protocols.

    Internet Protocol: IP protocol, IP Addresses,

    SECTION - D

    Internet Applications: Domain Name System, Electronic mail, The World Wide Web, Multimedia - Audio,Video, Data compression, File Transfer and Remote File Access Introduction, data transfer anddistributed communication, generalised file transfer, interactive and batch transfer, FTP, FTP model, FTPinterface, client-server interaction in FTP.

    REFERENCES :

    1. Andrew S. Tanenbaum, Computer Networks, Third Edition, PHI Publications, 1997.

    2. Stallings William, Data & Computer Communication, 6th Edition, PHI Publications.

    3. D.E. Corner, Computer Networks and Internets, Second Edition, Addison-Wesley Publication,2000.

    4. D. Bertsellas and R. Gallager, Data Networks, 2nd Edition, Prentice Hall, 1992.

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    BCA-207 SOFTWARE LAB-III(OBJECT ORIENTED PROGRAMMING USING C++ )

    Maximum Marks: 50 Maximum Time: 3 Hrs.Minimum Pass Marks: 35% Lectures to be delivered: 90 Hours

    Implement programs in C++ for the following:

    1. Program flow control (for, while, do while, if, if else, switch).

    2. Inbuilt Data Structures (arrays, structures, unions, pointers, enumerations)

    3. Functions (inline, parameter passing, overloaded)

    4. Classes, Objects and Members (Constructors, Destructors)

    5. Inheritance (types of derivation, types of inheritance)

    6. Polymorphism (operator overloading, static binding, dynamic binding, pure virtual functions)

    7. Files and streams

    Data Structures covered under the paper BCA-202 are to be implemented in C++.

    BCA-208 SOFTWARE LAB-IV (DATA STRUCTURES)

    Maximum Marks: 50 Maximum Time: 3 Hrs.

    Minimum Pass Marks: 35% Lectures to be delivered: 90 Hours

    Data Structures covered under the paper BCA-203 are to be implemented in C++.

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    BCA 209 Environmental Studies

    Time alloted: 3 hours Total Lectures : 50

    Total Marks : 100

    Pass Marks : 35Written Paper : 75 Marks

    Field Work : 25 MarksInstructions

    The written paper will have two parts. First part will be of 25 marks it will contain 10 questions, the students will

    attempt 5 questions of five marks out of this part. The answer to these questions should non-exceed 50 words each.

    Part second will be of 50 marks and will contain 10 essay type questions. The candidates will attempt 5 questions

    out of this part and the answer to each question should not exceed 500 words. Each question will carry ten marks.

    Unit 1: The Multidisciplinary nature of environmental studies

    Definition, scope and importance

    (2 Lectures)

    Need for public awareness.Unit 2 Natural Resources :

    Renewable and non renewable resources:

    Natural resources and associated problems.

    a) Forest resources: Use and over - exploitation, deforestation, case studies.Timber extraction, mining, dams and their effects on forests and tribal people.

    b) Water resources: Use and over utilization of surface and ground water,floods, drought, conflicts over water, dams benefits and problems.

    c) Mineral resources: Use and exploitation, environmental effects of

    extracting and using mineral resources, ease studies.

    d) Food Resources : World Food problems, changes caused by agriculture and

    overgrazing, effects of modern agriculture, fertilizer-pesticide problems, water logging;

    salinity, case studies.

    e) Energy resources: Growing energy needs, renewable and non- renewable energy

    sources, use of alternate energy sources, Case studies.F) Land resources: Land as a resource, land degradation, man included landslides, soil

    erosion and desertification.

    Role of an individual in conservation of natural resources Equitable use of resources for sustainable lifestyles.

    Unit 3: Ecosystems

    Concept of an ecosystem

    Structure and function of an ecosystem

    Producers, consumers and decomposers.

    Energy flow in the ecosystem

    Ecological succession

    Food chains, food webs and ecological pyramids

    Introduction, types, characteristic features, structure and functions of the following ecosystem:-

    a Forest ecosystem

    b Grassland ecosystemc Desert ecosystem

    d Aquatic ecosystems ( ponds, streams, lakes, rivers, oceans, estuaries)( 6 lectures)

    Unit 4: Biodiversity and its conservation

    introduction - - Definition: species and ecosystem diversity

    Biogeographically classification of India

    Value of biodiversity: consumptives use, productive, social, ethical, aesthetic and option values.

    Biodiversity at global, National and local levels.

    India as a mega-diversity nation

    Hot spots of biodiversity

    Threats to biodiversity: Habitat loss, poaching of wildlife, man-wildlife conflicts.

    Endangered and endemic species of India Conservation of biodiversity: In-situ and Ex-situ conservation of biodiversity.

    (8 Lectures)

    Unit 5: Environmental Pollution

    Definition

    Causes, effects and control measures of:-

    a) Air Pollutionb) Water Pollution

    c) Soil Pollution

    d) Marine Pollution

    e) Noise Pollution

    f) Thermal Pollution

    g) Nuclear Hazards Solid waste Management Causes, effects and control meausers of urban and industrial wastes.

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    Role of and individual in prevention of pollution

    Pollution case studies

    Disaster management : floods, earthquake, cyclone and landslides.

    (8 Lectures)

    Unit 6: Social Issues and the Environment

    From Unsustainable to Sustainable development Urban problems related to energy

    Water conservation, rain water harvesting, watershed management

    Resettlement and rehabilitation of people; its problems and concerns

    Case studies.

    Environmental ethics: Issues and possible solutions

    Climate change, global warning, acid rain, ozone layer depletion, nuclear accidents and

    holocaust, Case studies

    Wasteland reclamation

    Consumerism and waste products.

    Consumerism and waste products

    Environment Protection Act.

    Air (Prevention and Control of Pollution) Act.

    Water (Prevention and control of pollution) Act

    Wildlife Protection Act.

    Forest Conservation Act

    Issues involved in enforcement of environmental legislation

    Public awareness.

    (7 Lectures)

    Unit 7: Human Population and the Environment

    Population growth, variation among nations.

    Population explosion - Family Welfare Programme.

    Environment and human health

    Human Rights

    Value EducationHIV/ AIDS

    Women and Child Welfare

    Role of Information Technology in Environment and human health

    Case Studies

    (6 Lectures)

    Unit 8: Field Work

    Visit to a local area to document environmental areas, river/ forest/ grassland/ hill/ mountain

    Visit to a local polluted site - Urban/ Rural/ Industrial/ Agriculture

    Study of common plants, insects, birds

    Study of simple ecosystems-pond, river, hill slopes, etc. (Field work Equal to 5 Lecture hours)

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