PDE Q52

Ocean water circulates both laterally (horizontal movement such as ocean currents) and vertically (vertical movement such as upwelling and downwelling). These movements are driven by factors like wind, salinity, temperature differences, Earth's rotation, and gravitational pull.

• Option A: only laterally
  Incorrect. Lateral movement does occur, but vertical movement is also significant.

• Option B: only vertically
  Incorrect. Vertical circulation is important, but lateral currents are a major part of oceanic movement.

• Option C: both laterally and vertically
  Correct. Ocean circulation involves complex patterns in both directions.

• Option D: neither laterally nor vertically
  Incorrect. Ocean water circulates actively in both dimensions.