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
Select the correct answer using the following codes:

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

Select the correct answer from the codes given below:

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?

Which of the pair given above is correctly matched?