1. Oceans and Climate Review

2. Wavelength

3. 1. The lowest point of a wave is the a. wavelength b. crest c. frequency d. trough

4. 2. Salinity is a measure of which of the following in water? a. magnesium chloride b. sand c. Dissolved salts d. oxygen

5. 3. Waves on the surface of the ocean are mostly caused by a. earthquakes b. the Coriolis effect c. the moon d. wind

6. 4. Which of the following areas in the ocean is likely to have the lowest salinity? a. Deep parts of the Pacific Ocean b. The cold Artic Ocean c. A bay at the mouth of a big river d. A warm, tropical sea

7. 5. The horizontal distance between wave crests is the a. wavelength b. trough c. frequency d. wave height

8. 6. Zones of upwelling are often associated with a. El Nino b. a lack of nutrients c. enormous schools of fish d. the upward movement of warm water

9. 7. Deep currents are caused mostly by a. upwelling b. the Coriolis effect c. surface winds d. differences in density

10. 8. In the Northern Hemisphere, currents curve to the right because of the a. longshore drift b. density c. moon’s gravity d. Coriolis effect

11. 9. A large stream of moving water that flows through the oceans is called a(n) a. wave b. current c. undertow d. tide

12. 10. The most dense water is generally found a. in the deep zone b. in the transition zone c. in the surface zone d. along the coast

13. 11. In which zone is the ocean temperature most affected by the weather? a. Polar zone b. Surface zone c. Deep zone d. Transition zone

14. 12. As you descend through the water column, a. Light increases b. Density decreases c. Temperature decreases d. Pressure decreases

15. 13. What directly causes waves to form in the ocean? a. Friction between air and water b. sun c. Friction between water and water d. The Coriolis effect

16. 14. Another name for the height of a wave is a. amplitude b. wavelength c. trough d. Crest length

17. 15. In the Northern Hemisphere, surface currents travel in this direction a. Counterclockwise b. Clockwise c. North d. Both a and b

18. 16. In the Southern Hemisphere, surface currents flow in this direction a. Counterclockwise b. Clockwise c. South d. Both A and B

19. 17. The movement of cold, deep ocean water to replace warm water at the surface is called a. The Coriolis effect b. El Nino c. Upwelling d. A surface current

20. 18. The Gulf Stream and the North Atlantic Drift both affect Europe’s climate. What type of current are they? a. Warm surface currents b. Warm deep currents c. Cold surface currents d. Cold deep currents

21. 19. Currents move at different depths or by layers in the oceans, what causes the water to travel at these different depths? a. Friction between air and water b. Temperature of water c. Friction between air and the ocean floor d. Density of the water

22. 20. As ocean water begins to evaporate it becomes a. Saltier b. Darker c. Cooler d. Calmer

23. 21. This current is very strong and warm and provides the Eastern U.S. and Northwestern U. Kingdom a warm, temperate climate a. Canary Current b. Gulf Stream c. West wind drift d. California current

24. 22. This current is known to be very strong, cold and circles the South Pole a. Canary Current b. Gulf Stream c. Antarctic Circumpolar d. California current

25. 23. The winds that travel between 0 degrees and 30 degrees latitude are called a. Trade Winds b. Prevailing Northwesterlies c. Polar winds d. Southwesterlies

26. 24. When comparing climate and weather, weather is considered to be a. Average wind chill b. Average rainfall c. Cloud cover and wind d. Regional temperature change

27. Identify the currents. A B D C A.North Pacific Equatorial Current B.South Pacific Equatorial Current C.Gulf Stream D.Japan Current