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:

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

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World Geography
The process of evaporation of water in nature is one of the basic components of the hydrological cycle. The other process that is considered to be essential for the completion of hydrological cycle is the

movement of water vapour in the atmosphere
movement of water in the water table
flow of water in the sea
flow tide and ebb tide in a river

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