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

infrared rays from the sun
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
ultraviolet rays from the sun

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