World Geography
The hazards of radiation belts include

deterioration of electronic circuits
adverse effect on living organisms
All of these
damage of solar cells of spacecraft

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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:

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

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