World Geography
In which rocks does most of the formation of caves take place?

Sandstone
Quartzite
Limestone
Granite

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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
Neither 1 & 2
Both 1 & 2
Only 1

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World Geography
Which winds are also known as Doctor winds?

Harmattan
Sirocco
Chinook
Loo

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