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Worksheetsocean current_2_16.1
Total questions: 13
Worksheet time: 5mins
What is the primary driving force behind surface ocean currents?
Temperature changes
gravitational force
wind
Eaerthquakes
What primarily drives deep ocean currents?
Marine animal migration
Seismic activity on the ocean floor
Wind patterns
Density differences in the water
Which factor contributes to the thermohaline circulation in the ocean?
Salinity variations
Solar radiation
Wave action
Coastal erosion
What is the effect of the Coriolis force on ocean currents?
It causes currents to flow in a straight line
It deflects currents to the right in the Northern Hemisphere
It has no effect on ocean currents
It increases the speed of currents
How do ocean currents influence global climate?
By redistributing heat around the planet
By increasing rainfall in coastal areas
By reducing wind speeds
By creating underwater volcanoes
How do ocean currents affect marine biodiversity?
By providing nutrients to surface waters
By increasing ocean temperatures
By reducing the number of fish species
By creating barriers to migration
Which phenomenon is caused by the interaction of ocean currents and wind?
El Niño
Ocean acidification
Coral bleaching
Thermal expansion
How does the Coriolis effect influence ocean currents?
It deflects ocean currents to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.
It causes ocean currents to move in a straight line across the globe.
It increases the speed of deep ocean currents.
It has no effect on ocean currents.
What role do ocean currents play in regulating sea surface temperatures?
They have no significant impact
They help to maintain consistent temperatures
They only affect temperatures in the polar regions
They increase temperature fluctuations
Which of the following is a consequence of changes in ocean currents?
Altered weather patterns
Increased volcanic activity
Decreased salinity levels
More frequent earthquakes
What is the primary factor that influences the direction of surface ocean currents?
Earth's rotation
Wind direction
Water temperature
Salinity levels
What is the phenomenon of upwelling?
The sinking of surface water due to density changes
The rise of warm water from tropical regions to polar areas
The heating of water near the equator causing evaporation
The movement of cold, nutrient-rich water from the deep ocean to the surface
What are ocean gyres?
Small circular currents near the coastlines
Deep ocean currents driven by earthquakes
Waves caused by underwater volcanoes
Large systems of circular currents formed by global wind patterns and the Coriolis effect
