PTU B.Tech Electrical 4th Semester Paper 2012 Environmental Science Punjab Technical University Exam 2012 4th Sem Environmental Science Test September and March Question Paper Free Download Punjab Technical University Environmental Science Question Papers 2012 PTU B.Tech Electrical 4th Semester Question Paper 2012 for all students Previous Year old Past Papers of PTU B.Tech Electrical 4th Sem Paper 2012 Environmental Science Punjab Technical University September 2012 and March 2012 Exam B.Tech Electrical 4th Semester Sample Model Question Papers Free Download PDF
a) Describe Fertilizer and pesticide problems.
b) Discuss effects of Dams on forest and tribal people.
c) Differentiate between Soil erosion and desertification.
d) Discuss benefits of Dams.
e) Discuss various threats to Bio-diversity.
f) What are the causes of Soil pollution.
g) Explain the role of Information Technology in human health.
h) Define HIV/AIDS?
I) Discuss the use of Bio-energy as a non-conventional source of energy.
j) Define Forest and desert ecosystem.
PTU B.Tech Electrical 4th Sem Paper 2012 Environmental Science