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1. How many troughs are discovered in atlantic ocean?
A. a) 1 trough
B. b) 2 troughs
C. c) 9 troughs
D. d) 19 troughs
2. How many troughs are found in Indian ocean?
A. a) 6 troughs
B. b) 4 troughs
C. c) 5 troughs
D. d) 8 troughs
3. What forms by range of mountain separated by great depression
A. A.) Oceanic trough
B. B.) Plain
C. C.) Oceanic hill
D. D.) Mid-oceanic range
4. What could be the peak of the mid-oceanic mountain ridge?
A. A.) 2500 meters
B. B.) 150 meters
C. C.) 105 meters
D. D.) 2 meters
5. What is the example of mid-oceanic mountain located in the mid-atlantic ridge?
A. A.) Island
B. B.) Plain
C. C.) Slope
D. D.) None of the above
6. Which of the following is the steepest peak mountain?
A. A.) Sea mound
B. B.) Island
C. C.) Troughs
D. D.) Shelf
7. How are sea mounds formed among the following?
A. A.) Due to volcanoes
B. B.) Due to waves
C. C.) Due to earthquake
D. D.) Due to tsunami
8. What is the height of sea mounds?
A. A.) 2000 to 1000 meters high
B. B.) 3000 to 4500 meters high
C. C.) 6000 to 5000 meters high
D. D.) 8000 to 9000 meters high
9. Which of the following is an example of an extension of the hawaiian islands into the pacific ocean?
A. A.) Emperor sea mound
B. B.) Sand dune
C. C.) Colorado
D. D.) Shelf
10. Which of the following is the well-known canyon in the universe?
A. A.) Hudson canyon
B. B.) Grand canyon
C. C.) Colorado
D. D.) Shelf
11. Which of the following oceans has more than ten thousand sea dunes and submerged islands?
A. A.) In the pacific ocean
B. B.) Arctic
C. C.) Indian ocean
D. D.) None of the above
12. Which of the following causes an increase in temperature between the east coast of america and the west coast of europe?
A. A.) Gulf stream
B. B.) Volcanos
C. C.) Earthquake
D. D.) Lava
13. Which of the following is a labrador?
A. A.) Cold stream
B. B.) Hot stream
C. C.) Sea mounds
D. D.) Trough
14. What is called when there is a sudden drop in temperature among the following?
A. A.) Temperature drop
B. B.) Temperature gradient thermocline
C. C.) Hot drop
D. D.) None of the above
15. For which of the following is the word salinity used?
A. A.) To determine the amount of sea salt
B. B.) To determine the color of the sea
C. C.) To determine sea heat
D. D.) To determine sea size
16. Which of the following is the salinity of normal sea?
A. A.) Between 33% to 37%
B. B.) 34% to 30%
C. C.) 10% to 20%
D. D.) 50% to 5%
17. Which of the following is the percentage of salinity in the red sea?
A. A.) 41 %
B. B.) 39 %
C. C.) 20 %
D. D.) 10 %
18. Which of the following is not a part of the aquatic cycle?
A. A.) Hydration
B. B.) Evaporation
C. C.) Precipitation
D. D.) Condensation
19. What is the average continental depth?
A. A.) 200 – 2000 m
B. B.) 20-200 m
C. C.) 2-20 m
D. D.) 2000-20000 m
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