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
infrared rays from the sun
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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World Geography
The process of weathering results into

a breakdown of one mass in to two or more masses, with no chemical change in the mineral or rock
the addition of specific atoms or compounds to the weathered surface
the complete loss of particular atoms or the compounds from the weathered surface
All of these

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