The general movement of a mass of oceanic water in a definite direction is called

1. Sea wave
2. Ocean current
3. Tides
4. Tsunami

Which of the following factors does not affect the movement of ocean currents directly?

1. Difference in rainfall amount
2. Difference in sea water temperature
3. Difference in sea water salinity
4. Coriolis effect

Which of the following is a cold ocean current?

1. Kuroshio current
2. Oyashio current
3. Gulf stream
4. All the above

Dense fog is formed near Newfoundland due to

1. the meeting of Gulf Stream & North Atlantic Drift
2. the meeting of Kuroshio and Oyashio Ocean currents
3. the meeting of two cold currents
4. the meeting of Gulf Stream & Labrador current