Conceptual Physical Science Explorations
2nd Edition
ISBN: 9780321567918
Author: Paul G. Hewitt, Leslie A. Hewitt, John A Suchocki
Publisher: Addison Wesley
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Textbook Question
Chapter 30, Problem 10RAT
The ultimate cause of ocean surface currents is
(a) divergence in equatorial regions.
(b) the gradient between the doldrums and the horse latitudes.
(c) density contrasts.
(d) frictional drag by prevailing winds.
Expert Solution & Answer
To determine
The correct option for the statement “The ultimate cause of ocean surface currents is”.
Answer to Problem 10RAT
The correct option for the statement “The ultimate cause of ocean surface currents is” is option (d).
Explanation of Solution
The oceans are the large water bodies at our Earth. The ocean's water remains salty due to dissolved salts and biomaterials. The surface water of the oceans always moves continuously, and the movement of water is also known as surface current.
When the wind blows across the surface of the ocean, then the wind applies some drag force due to the friction between surface water and the air. This frictional drag force provides motion to the surface water in the same direction of the blowing wind. Thus, the reason behind the surface current is frictional drag by the prevailing wind.
Conclusion:
Therefore, the correct option for the statement “The ultimate cause of ocean surface currents is” is option (d).
Chapter 30 Solutions
Conceptual Physical Science Explorations
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Ch. 30 - What is the underlying cause of air motion?Ch. 30 - What causes pressure difference to arise and hence...Ch. 30 - In what direction does Earth spin-west to east or...Ch. 30 - What does the Coriolis force do to winds? To ocean...Ch. 30 - Why are most of the worlds deserts found in the...Ch. 30 - Why are the eastbound aircraft flights usually...Ch. 30 - Prob. 17RQCh. 30 - Prob. 18RQCh. 30 - Why are all tides greatest at the time of a full...Ch. 30 - When would the highest high tide occur: during a...Ch. 30 - Earth is closest to the Sun in January, but...Ch. 30 - If the composition of the upper atmosphere were...Ch. 30 - If the composition of the upper atmosphere were...Ch. 30 - Why is it important that mountain climbers wear...Ch. 30 - Prob. 5TECh. 30 - Prob. 6TECh. 30 - How do the total number of hours of sunlight in a...Ch. 30 - Why are temperature fluctuations greater over land...Ch. 30 - Because seawater does not freeze easily, sea ice...Ch. 30 - Prob. 10TECh. 30 - How does the ocean influence weather on land?Ch. 30 - Prob. 12TECh. 30 - Prob. 13TECh. 30 - As ocean waves approach shallow water, those with...Ch. 30 - With respect to spring and neap ocean tides, when...Ch. 30 - If Earth were not spinning, in what direction...Ch. 30 - Why is the thermosphere so much hotter than the...Ch. 30 - Prob. 18TECh. 30 - If it is winter and January in Chicago, What are...Ch. 30 - What causes the fiery display of light called the...Ch. 30 - Prob. 1RATCh. 30 - When compared to lands far from the oceans, lands...Ch. 30 - Which pulls with the greater force on the Earths...Ch. 30 - Air motion is greatly influenced by (a) pressure...Ch. 30 - Ocean tides are caused by the differences in the...Ch. 30 - Prob. 6RATCh. 30 - The wind blows in response to (a) frictional drag....Ch. 30 - Prob. 8RATCh. 30 - Prob. 9RATCh. 30 - The ultimate cause of ocean surface currents is...
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