World Geography
Which among the following pairs is/are correctly matched?Horst – Depressed block of planetary crust bordered by parallel faultsOceanic trench  – Depressed block of planetary crust bordered by parallel faultsSelect the correct code from the options given below:

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

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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

ultraviolet rays from the sun
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
None of these

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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
All of these
the addition of specific atoms or compounds to the weathered surface
the complete loss of particular atoms or the compounds from the weathered surface

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