Environmental Studies Paper-3

Paper – 3 | 2011

 Environmental Studies (Qualifying Paper) 

Compulsory Course on Environmental Studies for Undergraduates of University of Delhi [One Semester]

The Question paper contains 4 printed pages | 5183

B.Sc(H)/B.Sc. Phy. Sc./Life Science

Paper-ESQP

Environmental Studies

(Admission of 2010 and onwards)

Time - 3 Hours | Maximum Marks-50

(Write your Roll No. on the top of immediately on receipt of this question paper)

Answer five questions in all, including

Question no. 1 which is compulsory.

Attempt all parts of a question together.

1. Define any ten of the following terms:

(i) Environment

(ii) Resources

(iii) Pollution

(iv) Conservation

(v) Biodiversity

(vi) Deforestation

(Vii)Biosphere

(viii) Hot Spot

(ix) Carcinogen

(x) Endemic Species

(xi) Sustainable Development

(xii) Wetland                                                

** 10x1=10**

2. (a) Differentiate between any two of the following:

(i)Renewable and Non-renewable Resources.

(ii)Ex-situ and In-situ Conservation.

(iii)Ozone as protector and ozone as destroyer.

                                                                     **2x2.5=5**

(b) Expand any five of the following abbreviations:

i)CPCB

ii)CFC

iii)IUCN

iv)SPM

v)PAN

vi)CNG                                                        

**5x1=5**

3. Write short notes on any four of the following:

i)Impact of urbanization on environment

ii)Importance of forest as a resource

(iii)Noise pollution

(iv) Global Warming

(v) Threats to biodiversity.                          

 **4x2.5=10**

4. (a) Discuss briefly the methods employed in conservation of soil.                              

**5**

    (b) Discuss the measure being taken in Delhi to clean the waters of Yamuna.         

**5**

5. Justify any two of the following statements:

(i) "Public awareness is a must to solve environmental issues."

(ii) " The nation that destroys its soil destroys itself."

(iii)" India is a megadiversity nation."                

**2x5=10**

6. (a) Discuss the strategies you will adopt as a responsible citizen for sustainable development of India.

    (b) Explain the consequences of over-utilization of water resources.

**5**

7. (a) How do human population and pollution affect biodiversity?

**5**

    (b) Give the significance of the following dates in environmental issues:

         I) April 24, 1973

         II) June 5, Every Year

         III) June 3-14, 1992

         IV) April 22, Every Year

          V) March 21, Every Year  

**5**

8. State whether the following statements are True or False:

I) Newspapers, TV and NGO's create public awareness about the environment.

II) Ozone Protects biosphere from X-rays.

III) Noise pollution is measured in decibles.

IV) Red tide is associated with soil pollution.

V) Mining has adverse effects on groundwater.

VI) Habitat is a place where an organism naturally occurs.

VII) Dodo was extinct due to pollution.

VIII) DDT is a nerve poison.

IX) Minamata disease is caused by mercury poisoning.

X) The Principal cause of acid rain is gases from burning coal and oil dispersed in water in the atmosphere.

**10X1=10**