Which of the following statements about ocean currents is/are correct?

1. In tropical and subtropical latitudes, the western coasts are bordered by cold water currents, which cause fog in this region.
2. In middle and higher latitudes, the western coasts are bordered by warm currents that cool summers and mild winters in those regions.

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Other than coral bleaching, what are the possible reasons for the loss of corals especially in great barrier reefs?

1. Tropical cyclones
2. Albedo effect
3. Coral-feeding starfish
4. Ocean Warming

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Which of the following is a relief feature of the ocean floor?

1. Seamount
2. Guyots
3. Atoll

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The Sargasso Sea is a vast patch of the Atlantic Ocean characterised by abundant floating brown seaweed called 'Sargassum.' This is formed due to the deposit of marine plants and refuse carried by the:

1. North Atlantic Current  
2. Canary current
3. North Atlantic Equatorial current
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Which of the following are the factors affecting Ocean Salinity?

1. Formation of ice on the sea surface.
2. The influx of fresh river waters.
3. Ocean Currents
4. Environmental Pollution
5. Precipitation
6. Wind

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Tides occur in the oceans and seas due to which among the following?

1. Gravitational force of the Sun
2. Gravitational force of the Moon
3. Centrifugal force of the Earth

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What explains the eastward flow of the equatorial counter-current?

Consider the following factors:

1. Rotation of the Earth
2. Air pressure and wind
3. Density of ocean water
4. Revolution of the Earth

Which of the above factors influence the ocean currents?