A
1 and 3
B
3 and 4
C
2 and 3
D
1 and 2
Correct answer: (d) 1 and 2
Explanation
- A
1 and 3
1 and 3. Humboldt is cold; Agulhas is the warm one.
- B
3 and 4
3 and 4. Both Humboldt and California are cold.
- C
2 and 3
2 and 3. Brazil is warm; Humboldt is cold.
- D
1 and 2
1 and 2. Agulhas (Mozambique/Agulhas) and Brazil are warm. Humboldt and California are cold.
Summary. Official key is (d) 1 and 2. Agulhas and Brazil are not cold currents. Also note: Humboldt — Peru; cold eastern Pacific; California — Cold eastern North Pacific; Agulhas — Warm; SW Indian Ocean; Brazil — Warm; South Atlantic.