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Which process is an example of an exogenic force acting on the Earth’s surface?

Answer and explanation

Correct answer: Chemical weathering of rock by rainwater

The correct answer is B. Exogenic forces operate at or near Earth’s surface and are powered by external agents or surface conditions, such as rainwater, rivers, wind, glaciers, and changes of temperature. Chemical weathering by rainwater alters minerals in a rock and gradually weakens or breaks it down, so it is exogenic. A is wrong because continental collision is driven by internal tectonic energy. C is also internal because mantle convection is caused by Earth’s internal heat. D is wrong because faulting and tectonic mountain building result from forces inside Earth. A useful warning is that a process may be visible at the surface but still be endogenic if its energy comes from within Earth.

Related tags

Exogenic ForcesChemical WeatheringSurface ProcessesGeomorphologyEndogenic And Exogenic ForcesGeomorphic ProcessesGeographyClass 11 Mcq

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