BE (1st Semester)
Examination Nov-Dec- 2009
Environmental & Ecology
Q.1(a) Define ecosystem.
(b) State various types of ecosystem. Explain the ecoii characteristics of pond ecosystem with diagram.
(c) What is environmental degradation ? Describe briefly the causes of environmental degradation.
(d) Explain -.in brief the environmental impact assessment c following points : ‘
- Methodology of EIA
Q. 2.(a) What is acid rain ?
(b) Describe the characteristics of major at mosj regions giving a diagram of profile of temperature and pre of the regions.
(c) What is photochemical smog ? Explain the development chemistry of photochemical smog. Enumerate advei effects photochemical smog.
(d) What is global warming ? Discuss the role of carboi methane, chlorofluorocarbon and oxides of nitrogen in warming.
Q. 3.(a) Give four sources of water pollution.
(b) What is COD ? How COD is measured in polluted State the significance and limitations of COD.
(c) Describe primary treatment of waste water. What are it advantages ?
(d) (i) Define eutrophication. Discuss the types and control of eutrophication.
(ii) Explain briefly aerobic and anaerobic treatment of waste water.
Q. 4.(a) What is soil pollution ? Name the main causes of soil pollution soil pollution.?
(b) (i) What is hazardous waste ? How it causes of. affects community . ,
(ii) Gh/e advantages and disadvantages of. solid waste disposal by-land filling.
(c) Explain the harmful effects of soil pollution. Describe the methods used for controlling it.
(d) What is noise pollution ? Define ‘ decible. Suggest measures for prevention and control of noise pollution.
Q. 5. (a) State the advantages of biofuels.
(b) (i) What are the advantages and disadvantages of biosurfactants ?
(ii) Discuss the pollutants liberated from paper or leaf industry and their biotechnological remediation.
(c) Write an informative note on any two of the following :
(d) What is biotechnology ? Explain with examples how biotechnological’ process play an important environmental protection.