Indira Gandhi National Open University (IGNOU) 2005 B.Tech Water Resource Engineering Earth & its Enviornment - Question Paper

Test Papers / Previous ques. Papers of IGNOU ET531A Earth & Its Environment December 2006
B.Tech. Civil (Water Resources Management)
Term-End exam

ET531A: Earth & Its Environment
Time: three hours
Maximum Marks: 70

Note: (i) ans any 5 ques..
(ii) All ques. carry equal marks.
(iii) Support your ans with suitable sketches wherever necessory.
(iv) Answers should be in your own language.
(v) Use of non programmable calculator is allowed.

December 2006

1. (a) define the different major hypotheses put forth to discuss the origin of the solar system. (7)

(b) discuss the hydrologic cycle with the help of a neat sketch. (7)

2. (a) define the process of cloud formation and list the different kinds of clouds. (7)

(b) What is wind? define the different kinds of forces acting upon the air mass. (7)

3. (a) What is an igneous rock? explain the different classes of igneous rocks. (7)

(b) define active and inactive faults with the help of diagrams. (7)

4. (a) discuss the major kinds of foliation. (7)

(b) discuss any 2 of the subsequent terms with examples: (2 x three 1/2 = 7)

(i) Fossils
(ii) Stratigraphy
(iii) Homeostatis

5. (a) What is meant by biogeochemical cycles? Represent any 1 cycle diagrammatically (7)

(b) What do you understand by the legal regulations of tolerance? discuss it with the help of a diagram. (7)

6. (a) what are the abiotic factors that will affect the trend of succession in a riverine community (7)

(b) Distinguish ranging from laminar flow and turbulent flow. (7)

7. Write short notes on any 4 of the subsequent (4 x three 1/2 = 14)

(a) Stratosphere
(b) Ballot's legal regulations
(c) Hydrodynamic fabric
(d) Faults
(e) Biotic components of an ecosystem
(f) Ecological niche

Earning:   Approval pending.