Back to quiz

6. What is the Benthic zone?

  • Sea floor - any part of the sediment
  • Shallow water overlying continental shelf - 200m
  • Deep water in open ocean beyond shelf break

7. What range is the pH of sea water?

  • 7.8-8.4
  • 6.9-7.9
  • 7.2-9.1

8. What is depth is the photic zone?

  • Top 150m
  • Top 100m
  • Top 200m
  • Top 50m

9. Water gets less dense the deeper you go through the water column

  • False
  • True

10. The ocean is important in distributing heat and governs weather systems

  • True
  • False

11. What is the salinity of sea water?

  • 54ppt
  • 49ppt
  • 35ppt
  • 26ppt

12. A big circular currents that goes around parts of our ocean basins is called?

  • Gyre circulation
  • Gun circulation
  • Basin circulation
  • Byre circulation

13. The total amount of water on the earth and in the atmosphere does not change

  • True
  • False

14. Cold and salty water is

  • Dense & lower down the water column
  • Not dense & higher up in the water column

15. What is the Neritic zone?

  • Shallow water overlying continental shelf - 200m
  • Deep water in open ocean beyond shelf break
  • Sea floor - any part of the sediment

16. Warm freshwater is

  • Not dense & higher up in the water column
  • Dense & lower down the water column

17. Evaporating water increases or decreases salinity?

  • Increases
  • Decreases

18. What is the study of ground water called?

  • Hydroyology
  • Hydrogeology
  • Hydrology

19. The most abundant salt in the sea is

  • NaCl
  • CuSO4
  • MgSO4
  • KI

20. The Neritic zone and the Oceanic zone divide up what?

  • The Pelagic zone
  • The water column
  • The Benthic zone