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Water causes mechanical weathering by seeping into cracks and then freezing. When water freezes, it expands, which causes the cracks to widen. An example of chemical weathering is when compounds in the rocks dissolve in water and are carried away. Salts are a prime example of this. Billions of years of this have made our oceans salty.
Water, when it appears in large quantities at some altitude, rushes downhill under the influence of gravity. In this rush, it shreds soils and sweeps sands and gravels into the unknown downstream. All this moving water carries small abrasive particles in it, and these will "sand down" rocks and just about anything else in the flow. If water creeps into cracks and crevices in rock and then freezes, it will break out tiny pieces of the rock. We know water expands when it becomes ice, and this mechanical pressure is almost irrestible. Rock is pulverized, and though each even is on a small scale, across a broad area and through a long period of time, it can make mountains disappear.
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Do mountain rocks cause chemical or mechanical weathering?
No, they don't. Rocks don't cause weathering at all. They are the things which get weathered.
What are 2 examples of mechanical and chemical weathering?
One example of chemical weathering is acid rain another is acid fog. An example of mechanical weathering is water eroding away mountains or water creating a river. by.....
What are the 2 main types of weathering?
The two main types of weathering are physical weathering and chemical weathering. Physical weathering involves water, wind and dust scraping away at rocks, while chemical weathering involves chemicals, usually acids, breaking down the rock.
Compare and contrast mechanical weathering and chemical weathering?
Mechanical weathering provides fresh surfaces for attack by chemical processes, and chemical weathering weakens the rock so that it is more susceptible to mechanical weathering.
Is leaves decaying in the forest a mechanical weathering?
Is repeated freezing and thawing of water that cracks rocks
What contribute to mechanical and chemical weathering?
Mechanical weathering includes abrading or crushing. Chemical weathering includes dissolution in water or acid rain. Oxidation and reduction reactions can also cause chemical weathering.
Water causes what type of weathering?
Water causes mechanical and chemical weathering.
Halite in rocks dissolving in water is a mechanical or chemical weathering?
it is chemical weathering
Does salt on a sidewalk cause mechanical or chemical weathering to the sidewalk?
Chemical, the sodium in the salt exchanges with calcium in the concrete. The chemical products are all water soluble and the surface of the sidewalk washes away.
Animal burrows dug in rock that let in water and air chemical or mechanical?
Plant growth is both a chemical and mechanical process. The roots secrete mild acids that dissolve minerals in rocks, and the plant's roots and stems can increase in size and force rocks apart inside cracks and crevices.
Explain the difference between mechanical and chemical weathering?
In chemical weathering, there is a chemical reaction that causes weathering. Mechanical weathering is caused by fire, abrasions of water along a surface, animals, or freezing and thawing.
Is halite dissolving in water mechanical wethering?
No, chemical because it involves water and water is a subject of Chemical Weathering not Mechanical.
Is oxygen mechanical or chemical weathering?
I Believe it is chemical weathering because oxidation is chemical and involves oxygen and water
What is the process that breaks down rocks chemically?
It's called chemical weathering. Think acid rain.
Do mountain rocks cause chemical or mechanical weathering?
No, they don't. Rocks don't cause weathering at all. They are the things which get weathered.
Is water a cause of physical weathering or chemical weathering?
It is a cause of both.
What are 2 examples of mechanical and chemical weathering?
One example of chemical weathering is acid rain another is acid fog. An example of mechanical weathering is water eroding away mountains or water creating a river. by.....
