1. Alaska Current
2. Agulhas Current
3. Falkland Current
4. West Australian Current
Select the answer using the code given below:
Understanding Ocean Currents
Ocean currents are like rivers within the ocean, moving large amounts of water around the globe. They play a crucial role in regulating climate. Currents are typically categorized as either 'warm' or 'cold'. A warm ocean current carries water that is warmer than the surrounding sea water, usually flowing from tropical or equatorial regions towards the poles. Conversely, a cold ocean current transports water that is cooler than the surrounding sea, typically flowing from polar regions towards the equator.
Analyzing the Given Ocean Currents
To determine which currents are warm, let's look at each one:
- 1. Alaska Current: This current is found in the North Pacific Ocean. It flows in a counter-clockwise direction along the coast of British Columbia and Alaska. Originating from relatively warmer, lower-latitude waters and moving poleward, it is classified as a warm ocean current.
- 2. Agulhas Current: Located off the southeastern coast of Africa, this is the largest western boundary current in the world. It carries warm, tropical waters from the Indian Ocean southward towards cooler regions. Therefore, the Agulhas Current is a warm ocean current.
- 3. Falkland Current: Flowing northward along the coast of Argentina, South America, this current originates from the cold waters of the Southern Ocean, influenced by the Antarctic Circumpolar Current. It brings cooler water towards subtropical latitudes, making it a cold ocean current.
- 4. West Australian Current: This current flows northwards along the west coast of Australia. It is part of the South Indian Ocean Gyre and originates from the cold waters of the Southern Ocean, moving towards the equator. Hence, it is classified as a cold ocean current.
Conclusion on Warm Currents
Based on their origin and the temperature of the water they transport relative to their surroundings:
- The Alaska Current is a warm current.
- The Agulhas Current is a warm current.
- The Falkland Current is a cold current.
- The West Australian Current is a cold current.
Thus, the warm ocean currents from the list provided are the Alaska Current and the Agulhas Current.
Similar Questions
Which one among the following statements with reference to Benguela current is NOT correct?
Which of the following is the correct ascending order of the given minerals in terms of their presence in the Earth's crust?
1. Amphibolite
2. Mica
3. Pyroxene
- Which of the following statements is/are correct?
1. Oceanic trenches are very signi-ficant in the study of plate move-ments
2. Oceanic trenches are associated with active volcanoes and strong earthquakes
Select the answer using the code given below: - Which of the following factors influ-ence the ocean currents?
1. Coriolis force
2. Gravity
3. Heating by solar energy
4. Wind
Select the answer using the code given below: - Consider the following statements with reference to sea waves:
1. The height of waves is determined by wind speed, wind duration, and fetch
2. The energy of a wave is propor-tional to the square of its height
3. Waves retain most of their energy as they travel across the deep ocean
Which of the statements given above is/are correct?
Important Questions from Oceanography
- What does the term 'halocline' refer to in oceanography?
Match List I with List II.
List – I List – II A. Albatross Plateau I. North Atlantic Ocean Ocean B. Telegraph Plateau II. North-West Pacific Ocean C. Amsterdam–St Paul Plateau III. South-East Pacific D. Kuril–Kamchatka Trench IV. Indian Ocean Arrange the following five zones of the pelagic region of an ocean in the increasing order of its depth from the surface.
1. Mesopelagic
2. Epipelagic
3. Abyssopelagic
4. Bathypelagic
5. Hadopelagic
Choose the correct answer from the options given below:- What is the correct sequence of the given geographic feature from South to North?
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1. The ocean salinity depends on evaporation and precipitation
2. Any change in the temperature or density influences the salinity
3. Major source of sea salinity is terrestrial discharge by rivers
Which of the statements given above are correct?
