Question

1. what moves surface currents?

a. water temperature
b. salinity
c. wind
d. all of these

Explanation:

To determine what moves surface currents, we analyze each option:

• Option A: Water temperature affects deep - ocean currents (thermohaline circulation) more than surface currents. So A is incorrect.
• Option B: Salinity also plays a major role in deep - ocean thermohaline circulation rather than surface currents. So B is incorrect.
• Option C: Wind is the primary driver of surface ocean currents. When wind blows over the ocean's surface, it transfers energy to the water, causing it to move. So C is correct.
• Option D: Since A and B are incorrect, "All of these" is not a valid option.

Answer:

C. Wind