EARTH SCIENCE
FOSSILS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The crack will disappear.
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The crack will get larger.
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Nothing will happen.
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The crack will get smaller.
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Detailed explanation-1: -Water seeps into cracks in the rocks, and, as the temperature drops below freezing, the water expands as ice in the cracks. The expansion exerts tremendous pressure on the surrounding rock and acts like a wedge, making cracks wider. After repeated freezing and thawing of water, the rock breaks apart.
Detailed explanation-2: -One example of this is ice (frost) wedging. Ice wedging is caused because water goes into cracks and when the water freezes, the ice expands and causes a bigger crack in the rock as seen in the picture on the right. Temperature change is physical weathering.
Detailed explanation-3: -Frost Weathering This cold temperature weathering occurs when water seeps into small cracks within a rock and freezes.