Ocean Currents

Q. Areas where cold and warm current meet ___________.

1. does not affect fishing
2. are best fishing grounds in January only.
3. are best fishing grounds
4. are worst fishing grounds

Q. Why are continental shelves regarded as the best grounds for fishing?

1. The region has an abundance of algae and plankton which attracts a lot of fishes.
2. The salinity of water makes laying nets easier.
3. Fishes can only live in this zone of the ocean.
4. These are the most undisturbed zones in the ocean.

Q.

Why is ocean water always moving?

Q. Gulf stream is ____________.

1. a warm current
2. a cold current
3. a warm current in summer and cold current in winter.
4. a cold current in summer and warm current in winter.

Q.

Which of the following is not the cause for the occurrence of ocean currents?

1. Revolution of the Earth

2. Prevailing winds

3. Density of water

4. Earth’s rotation

Q. Select the currents which are a part of the Southern Pacific Gyre.

1. East Australian current
2. Humboldt current
3. Canary current
4. Oyashio current

Q. Which of the following is a well-known warm ocean current?

1. Gulf stream
2. Labrador
3. Canary current
4. California current

Q. Which are the ocean currents that flow near the equator?

1. East Equatorial Current
2. North Equatorial Current
3. South Equatorial Current
4. West Equatorial Current

Q. There are two main ocean gyres in the Atlantic Ocean. What are they?

1. West Atlantic Gyre
2. North Atlantic Gyre
3. East Atlantic Gyre
4. South Atlantic Gyre

Q. Select the currents which are a part of the Indian Ocean Gyre.

1. Humboldt current
2. West Australian Current
3. Agulhas current
4. Mozambique current

Q. Labrador current is a _____________,

1. warm current
2. cold current
3. warm current in summer and cold current in winter.
4. cold current in summer and warm current in winter.

Q.

In areas where warm and cold currents meet, it results in foggy weather at that place which makes it difficult for

1. Producing electricity

2. Fishing

3. None of the above

4. Navigation

Q. If you were a fisherman/fisherwoman, which of these areas and during which tides would you prefer to fish?

1. During spring tides
2. During high tides
3. During low tides
4. In areas where cold current and warm current meet

Q. Select the correct option after reading the statements.
1) When warm ocean waters move towards cooler regions it is called a ‘warm ocean current’.
2) When cold ocean waters move towards hotter regions, it is called a ‘cold ocean current’.

1. Both statements are true.
2. Statement 1 is true and statement 2 is false.
3. Both statements are false.
4. Statement 2 is true and statement 1 is false.

Q. The movement of deep ocean currents due to changes in ________ and _________ is called thermohaline circulation.

1. temperature
2. pressure
3. solubility
4. salinity

Q. The cold ______ and the warm Kuroshio current meet near the coast of Japan.

1. Oyashio current
2. Gulf stream
3. Canary current
4. California current

Q. Which of the following is a well-known cold ocean current?

1. Retriever
2. Gulf stream
3. Labrador
4. Kuroshio current

Q. If the ocean current is at play up to ____ m in depth, then it’s considered a surface ocean current.

1. 500
2. 10
3. 1000
4. 50

Q. The warm currents carry water from polar or higher latitudes to tropical or lower latitudes.

1. True
2. False

Q. Why is the coast of Japan cosidered as one of the best fishing sites in the world?

1. The cold Labrador current and the warm Gulf Stream current meet here.
2. The warm Kuroshio current and the cold Oyashio current meet here.
3. The coast is maintained scientifically for maximum yield.
4. The ocean currents carry fishes with them.

Q. Identify areas that are considered as good areas of fishing.

1. Seas around Japan.
2. Eastern coast of North America.
3. Middle of Indian Ocean.
4. Middle of Pacific Ccean.

Q. Generally, warm ocean currents originate near the_______.

1. Poles
2. Tropic of Cancer
3. Tropic of Capricorn
4. Equator

Q. Areas where cold and warm current meet are ___________ for navigation.

1. are preferred
2. safe and excellent
3. excellent
4. not safe

Q. Ocean currents ______________ the temperature conditions of the land area in its vicinity.

1. influence
2. don't influence
3. don't moderate
4. moderate