GEOLOGY
PHYSICAL GEOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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because weathering is often limited to physical changes in earth minerals
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because weathering is often limited to chemical changes in earth materials
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because erosion involves the stationary processes that break down rock
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because erosion involves movement of earth materials from one location to another
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Detailed explanation-1: -Gravity facilitates the down slope transportation of loosened, weathered materials and enables them to move without the aid of water, wind, or ice. However, these agents can act as catalysts for gravity related erosion. Movements by gravity may be very slow or very abrupt.
Detailed explanation-2: -Wind is a powerful agent of erosion. Aeolian (wind-driven) processes constantly transport dust, sand, and ash from one place to another. Wind can sometimes blow sand into towering dunes. Some sand dunes in the Badain Jaran section of the Gobi Desert in China, for example, reach more than 400 meters (1, 300 feet) high.
Detailed explanation-3: -As pieces of the Earth are broken down by weathering, they are carried away in a process called erosion. Water is a common way that pieces of the Earth are moved to a new location. Wind also contributes to erosion by blowing the particles away. Glaciers can pick up pieces of the Earth and drag them to new locations.
Detailed explanation-4: -Water is the most important agent of chemical weathering. Two other important agents of chemical weathering are carbon dioxide and oxygen.