World Geography
Which among the following statements is/are correct about the Gravity Model of Migration?According to the gravity model, the migration between two places is inversely proportional to the product of the population of the two centres.The gravity model implies that the capacity of an area to attract migrants depends upon the size of its population or its economic potential.Select the correct code from the options given below:

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

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

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