Deemed University 2011 B.Arch Architecture University: Lingayas University Term: Title of the : Environmental Science & Ecology - Question Paper

Roll No. ..

 

Lingayas University

B. Arch. 1^st Year

Examination June 2011

Environmental Science & Ecology (CE - 101)

 

 

 

[Time: 3 Hours] [Max. Marks: 100]

 

Before answering the question, candidate should ensure that they have been supplied the correct and complete question paper. No complaint in this regard, will be entertained after examination.

 

Note: Attempt five questions in all. All questions carry equal marks. Question no. 1 (Section A) is compulsory. Select two questions from Section B and two questions from Section C.

 

Section A

Q-1. Part A

Select the correct answer of the following multiple choice questions. [101=10]

(i) Most stable ecosystem is

(a) Forest (b) Desert

(c) Ocean (d) Mountain

(ii) A primary succession on bare rock starts with

(a) Lichens (b) Herbs

(c) Trees (d) Animals

(iii) The study of interactions between living and non-living organisms and environment is called as

(a) Ecosystem (b) Ecology

(c) Phyto-geography (d) Phyto-sociology

(iv) The term ecology was introduced by

(a) Haekel (b) Odum

(c) Tansely (d) Ramdeo Mishra

(v) An ecosystem consist of

(a) Green plant and animals

(b) Green plant and decomposers

(c) Producers and consumers

(d) Green plants, animals, decomposers and abiotic environment

(vi) Acid rain is caused by increase in the atmospheric concentration of

(a) Ozone and dust (b) SO2 and NO2

(c) SO3 and CO (d) CO2 and CO

(vii) Which of the following on inhalation is dissolved in the blood hemoglobin more rapidly than oxygen?

(a) Sulphur dioxide (b) Carbon monoxide

(c) Ozone (d) Nitrous oxide

(viii) Smog is

(a) A natural phenomenon

(b) A combination of the smoke and fog

(c) Is colourless

(d) All of the above

(ix) Which of the following are likely to be present in photochemical smog?

(a) Sulphur dioxide (b) Photochemical

(c) Chlorofluorocarbon (d) Smog

(x) Which of the following is a secondary air pollutant?

(a) Ozone (b) Carbon dioxide

(c) Carbon mono-oxide (d) Sulphur dioxide

Q-1. Part B

Explain the flow of energy through the components of the ecosystem. [10]

Section B

Q-2. Ecosystem is structural & functional unit. Discuss. [20]

 

Q-3. Write short notes on any two:

(i) Impact of Deforestation on Environment

(ii) Impact of Modern Agriculture on lends resources

(iii) Food chain and food web. [210=20]

Q-4. What are the causes, impact and control measurement of Air pollution? [20]

 

Section C

Q-5. What do you understand by ecological pyramids? Explain types of pyramids with suitable example. [20]

 

Q-6. What are the advantages and limitations of non-conventional energy? Discuss. [20]

 

Q-7. What is meant by environment? Enumerate and discuss various components. [20]

 

Q-8. What do you mean by natural disaster? Discuss in light of recent Tsunami of Japan. What precautions should you suggest to minimize the loss of life and property? [20]