CSS Geology Past Paper 2021

Instructions specific to this paper

• Attempt ONLY FOUR questions from PART-II by selecting TWO questions from EACH

Questions

1. Q. 220 marks

   Classify pyroxene group of minerals based on chemical composition. Also mention their physical and optical properties.

2. Q. 320 marks

   Elaborate various laws of stratigraphy, use suitable sketches/examples in support of your answer.

3. Q. 420 marks

   Elaborate the fundamental silica tetrahedral structure (SiO 4 ). Give possibilities of SiO 4 linkage to give rise to six silicate structural groups.

4. Q. 520 marks

   Describe the test compositions of order Foraminiferida. Discuss their ecology and how it plays important role in Tertiary biostratigraphy.

5. Q. 620 marks

   Elaborate characteristics of effective trap-rocks. Describe principal types of hydrocarbon traps with examples.

6. Q. 720 marks

   What are the possible causes of land sliding in the northern mountainous region of Pakistan and how it can be reduced?

7. Q. 820 marks

   Write short notes on any TWO of the following: (10 each) (a) Geothermal energy (b) Eustatic curve (c) Physical weathering

Standard FPSC instructions

Printed on this and every CSS paper.

• Part-II is to be attempted on the separate Answer Book.
• All the parts (if any) of each question must be attempted at one place instead of at different places.
• Write Q. No. in the Answer Book in accordance with Q. No. in the question paper.
• No page/space be left blank between the answers. All the blank pages of the Answer Book must be crossed.
• Extra attempt of any question or any part of the attempted question will not be considered.