P.G. DIPLOMA EXAMINATION, NOVEMBER 2017
First Semester
SCUBA Diving
MARINE UNDERWATER ECOLOGY AND
OCEANOGRAPHY
(CBCS 2017 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
All questions carry equal marks.
1. Temperature
2. Predator
3. Oceanic ridges
4. Plate tectonics
5. Tides
6. Phytoplankton
7. Pelagic Zone
8. Seagrass beds
9. Overfishing
10. Alien species
Sub. Code
465101
RW-1280
2
Sp 5
Part B x 5 25)
Answer all the questions, choosing either or
All questions carry equal marks.
11. Write short notes on Parasitism.
Or
Describe the biological succession.
12. Comment on geography of Indian Ocean.
Or
Write note on Submarine canyon.
13. Briefly explain on thermohaline circulation.
Or
Comment on Manganese nodules.
14. Write notes on classification of marine environment.
Or
Describe the mangrove ecosystem.
15. Ocean supports living resources- Discuss.
Or
How does pollution affect the Ocean?
Part C x 10 30)
Answer any three questions.
All questions carry equal marks.
16. Give an account on abiotic factors which influence the
marine ecosystem.
17. Describe the Deep-sea sediments.
RW-1280
3
Sp 5
18. Explain in detail about the biotic components.
19. Write in detail on Coral reef ecosystems.
20. Why some marine animals are endangered because of
pollution?
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