SSC
WORLD GEOGRAPHY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Large masses of rock are melded together through volcanoes
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Large masses of rock are broken into smaller pieces
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Chemicals slowly break down rocks over many years
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Wind and rain blow dirt away from rocks
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Detailed explanation-1: -Mechanical Weathering Mechanical weathering, also called physical weathering and disaggregation, causes rocks to crumble. Water, in either liquid or solid form, is often a key agent of mechanical weathering. For instance, liquid water can seep into cracks and crevices in rock.
Detailed explanation-2: -Physical weathering transforms a large mass of rock into smaller pieces which are more easily transported and eroded. Rocks can break for a variety of reasons, including stress along natural zones of weakness and due to biological and chemical activity.
Detailed explanation-3: -Physical weathering is the breaking of rocks into smaller pieces. This can happen through exfoliation, freeze-thaw cycles, abrasion, root expansion, and wet-dry cycles. Exfoliation: When temperature of rocks rapidly changes that can expand or crack rocks.