Which one of the following is NOT a current of Pacific Ocean ?
- A.Oyashio current
- B.Alaska current
- C.Agulhas current
- D.California current
Correct answer
Explanation
The correct answer is C, Agulhas current. The Agulhas current flows in the Indian Ocean, down the south-east coast of Africa, so it is not a Pacific current. The Agulhas is a warm current that carries water from the tropical Indian Ocean south along the coasts of Mozambique and South Africa, past Cape Agulhas, the southern tip of Africa. It is one of the strongest western boundary currents in the world. Ocean currents are grouped as warm when they flow from the equator towards the poles and cold when they flow from the poles towards the equator. Option A is wrong because the Oyashio is a cold current of the north-west Pacific that flows south past the Kuril Islands and meets the warm Kuroshio off Japan, creating rich fishing grounds. Option B is wrong because the Alaska current is a warm current in the Gulf of Alaska in the north-east Pacific. Option D is wrong because the California current is a cold current flowing south along the west coast of North America. Exam tip: Agulhas and Mozambique are Indian Ocean currents; Kuroshio, Oyashio, Alaska and California are Pacific.
Practice Questions
View allWhich one of the following is not a minor plate ?
- A.Cocos Plate
- B.Nazca Plate
- C.Caroline Plate
- D.Antarctic Plate
Show answer
The Antarctic Plate, carrying Antarctica and the ocean around it, is one of the seven major lithospheric plates. Plate tectonics divides the lithosphere into seven major plates and several minor ones.
Read the full explanation →Which of the following statements with reference to shadow zones in an event of an earthquake is/are correct ? 1. Zone between 105° and 145° from epicentre was identified as the shadow zone for both P-waves and S-waves 2. The shadow zone of P-waves is much larger than that of the S-waves Select the answer using the code given below:
- A.1 only
- B.2 only
- C.Both 1 and 2
- D.Neither 1 nor 2
Show answer
The band between 105° and 145° from the epicentre receives neither P-waves nor S-waves, but it is the S-wave shadow zone that is much larger, so statement 2 is wrong.
Read the full explanation →Which of the following statements about Ring of Fire is/are correct ? 1. It is a zone of convergence plate boundaries 2. It is an active seismic and volcanic zone 3. It is associated with deep trench Select the correct answer using the code given below :
- A.1 and 2 only
- B.2 and 3 only
- C.1 only
- D.1, 2 and 3
Show answer
The Ring of Fire around the Pacific is a belt of convergent plate boundaries, full of active volcanoes and earthquakes and lined by deep ocean trenches.
Read the full explanation →Which one of the following rivers is not a tributary of river Brahmaputra ?
- A.River Manas
- B.River Kameng
- C.River Mahananda
- D.River Subansiri
Show answer
The Mahananda rises in the Darjeeling hills, flows through north Bengal and Bihar and joins the Ganga, not the Brahmaputra.
Read the full explanation →Which of the following statements regarding tropical cyclones is/are correct ? 1. These storms develop during the summer and autumn in every tropical ocean except the South Atlantic and eastern South Pacific Oceans. 2. Tropical cyclones that occur in the North Atlantic and eastern North Pacific Oceans are known as typhoons. 3. Tropical cyclones that occur in the Indian and South Pacific Oceans are called cyclones. Select the answer using the code given below :
- A.3 only
- B.1 and 2 only
- C.1 and 3 only
- D.1, 2 and 3
Show answer
Tropical cyclones of the North Atlantic and eastern North Pacific are called hurricanes, not typhoons, so statement 2 is wrong.
Read the full explanation →