World Geography
Which among the following statements is/are correct about the symbiotic life of Corals?Algae gives carbon dioxide and other substances the  coral polyp needs.Coral polyp gives off oxygen and other nutrients that the algae needs.Select the correct code from the options given below:

Only 2
Only 1
Neither 1 & 2
Both 1 & 2

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World Geography
The periodic rise and fall of the sea level on the earth, gives rise to tides. This is related to

None of these
the position of the moon with reference to the earth and the gravitational pull exerted mainly by the moon and partly by the sun
infrared rays from the sun
ultraviolet rays from the sun

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World Geography
Which region is known for the world’s best cod-fishing grounds?

The Northwest Pacific Region
The Northeast Atlantic Region
The Northeast Atlantic Region
The Southwest Pacific Region

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