16.3 1. How are surface ocean currents and river currents different? 2. What is the Coriolis effect? 3. What two factors cause some seawater to become denser, resulting in thermohaline currents? 4. According to the global ocean conveyor belt, what happens to the water that sinks in the North Atlantic? 5. What causes upwelling?

Question

16.3 1. How are surface ocean currents and river currents different? 2. What is the Coriolis effect? 3. What two factors cause some seawater to become denser, resulting in thermohaline currents? 4. According to the global ocean conveyor belt, what happens to the water that sinks in the North Atlantic? 5. What causes upwelling?

Answer 1

1. Surface ocean currents are primarily driven by the wind and are influenced by the Earth's rotation, while river currents are primarily driven by gravity and the slope of the river bed.2. The Coriolis effect is the deflection of moving objects caused by the rotation of the It causes moving objects to be deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.3. The two factors that cause some seawater to become denser, resulting in thermohaline currents, are temperature and salinity. Colder water is denser than warmer water, and water with higher salinity is denser than water with lower salinity.4. According to the global ocean conveyor belt, the water that sinks in the North Atlantic is transported towards the southern hemisphere, where it eventually warms up and rises, completing the circulation.5. Upwelling is caused by the wind blowing across the ocean surface, pushing the surface water away and allowing deeper water to rise and replace it.

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