Pokhara University
Level: Bachelor | Semester: Fall | Year: 2015
Programme: B.Sc. Environmental Management
Course: Environmental Geology and Soil
Full Marks: 100 | Pass Marks: 45 | Time: 3hrs
Candidates are required to give their answer in their own words as far as practicable. The figures in the margin indicate full marks.
Attempt all the questions:
- a) Describe our solar system. [8]
b) What is an atmosphere? Discuss the different layers of atmosphere. [7] - a) Explain the rock cycle with suitable diagram. [7]
b) What is an earthquake? How are earthquake distributed in the world? [8] - a) What are the supporting evidences of continental drift hypothesis? Explain. [7+8]
b) Discuss the internal layers of earth
OR
a) Describe in brief the landforms made by running water. [8]
b) ?Wind is a geomorphic agent? Explain. [7] - a) Why soil is called ?three phase system?? Describe on the basis of soil composition. [8]
b) Explain different types of soil organisms. [7] - Discuss the chemical properties of soil. [15]
OR
a) Describe the different types of soil degradation processes, cases and their effect on soil quality. [8]
b) Classify the soil texture based on USDA classification. Explain why texture is important? [7] - a) What is humus? Shed light on the importance of soil organic matter. [7]
b) Describe the soil profile with neat sketch. [8] - Write short notes on any two: [5 X 2]
a) Water Cycle
b) Nitrogen fixation
c) Spheres of life.