Multiple Choice
How many elements are present in the human body at levels higher than trace amounts?
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1. Introduction to Biology
Introduction to Biology
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Which of the following is the primary factor that drives surface currents in the world's oceans?
A
Wind patterns
B
Seafloor spreading
C
Earth's magnetic field
D
Tidal forces from the Moon
Verified step by step guidance1
Understand the concept of surface currents: Surface currents are movements of water that occur at or near the ocean's surface and are primarily driven by external forces.
Identify the primary factor influencing surface currents: Surface currents are mainly driven by wind patterns, which exert force on the ocean's surface and create movement in the water.
Eliminate incorrect options: Seafloor spreading refers to the creation of new oceanic crust at mid-ocean ridges and does not directly affect surface currents. Earth's magnetic field influences navigation but does not drive ocean currents. Tidal forces from the Moon primarily affect tides, not surface currents.
Relate wind patterns to surface currents: Wind patterns, such as the trade winds and westerlies, create friction on the ocean's surface, causing water to move in specific directions. This movement is further influenced by the Coriolis effect, which results from Earth's rotation.
Conclude that wind patterns are the primary factor driving surface currents: Based on the explanation above, wind patterns are the correct answer as they are the dominant force responsible for the movement of surface currents in the world's oceans.
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