SSC
WORLD GEOGRAPHY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following examples illustrates the difference between physical weathering and chemical weathering?
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Beaches form from the sediments washed up by the sea due to physical weathering, but they erode away due to chemical weathering.
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A rock with iron in it is exposed to air and crumbles because of physical weathering, but the same rock crushed by a larger rock breaks apart due to chemical weathering.
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Minerals in water wear away at rock because of physical weathering, but the rock wears away from the force of the water due to chemical weathering.
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A rock is broken into smaller pieces by physical weathering, but some cave formations are created by chemical weathering.
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Explanation:
Detailed explanation-1: -Some examples of chemical weathering are rust, which happens through oxidation and acid rain, caused from carbonic acid dissolves rocks. Other chemical weathering, such as dissolution, causes rocks and minerals to break down to form soil.
Detailed explanation-2: -Swiftly moving water. Rapidly moving water can lift, for short periods of time, rocks from the stream bottom. When these rocks drop, they collide with other rocks, breaking tiny pieces off. Ice wedging. Ice wedging causes many rocks to break. Plant roots. Plant roots can grow in cracks.
Detailed explanation-3: -Abrasion: Frost Wedging: Biological Activity/Root Wedging: Salt Crystal Growth: Sheeting: Thermal Expansion: Works Cited. 08-Jun-2020
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