GEOLOGY
PHYSICAL GEOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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water
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wind
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glaciers
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gravity
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Detailed explanation-1: -If you have ever collected beach glass or pebbles from a stream, you have witnessed the work of abrasion. Water flowing through river or beach cobbles causes them to hit each other. This contact causes abrasion, which makes the rocks round.
Detailed explanation-2: -Weathering is the breakdown of rocks at the Earth’s surface, by the action of rainwater, extremes of temperature, and biological activity. It does not involve the removal of rock material. There are three types of weathering, physical, chemical and biological.
Detailed explanation-3: -High temperatures and greater rainfall increase the rate of chemical weathering. 2. Rocks in tropical regions exposed to abundant rainfall and hot temperatures weather much faster than similar rocks residing in cold, dry regions.
Detailed explanation-4: -Weathering is often divided into the processes of mechanical weathering and chemical weathering.