Question

Q. Which of the following ocean currents form the boundaries of the South Atlantic Subtropical Gyre?

Select the correct option using the codes given below:

• A. 1 and 2 only
• B. 2 and 4 only
• C. 3 and 4 only
• D. 1, 2 and 3 only

Answer 1

The correct option is A 1 and 2 only

Explanation:

• Statement 1 is correct: South Atlantic Subtropical Gyre is composed of the southward flowing western boundary Brazil Current (BC), which flows along the South American coast until it meets the northeastward extension of the Antarctic Circumpolar Current (ACC) into the Atlantic, the Malvinas Current (Falkland Current), characterizing the Brazil-Malvinas.
• Statement 2 is correct: South Atlantic current feeds the Benguela Current to the north, which marks the eastern boundary of the subtropical gyre.
• Statement 3 is incorrect: The Canary Current is part of the North Atlantic Gyre.
• Statement 4 is incorrect: Agulhas current is a warm ocean current in the Indian Ocean flowing south along the southeastern coast of Africa.