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Chemical weathering
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∙ 9y ago
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Compare and contrast chemical weathering and mechanical weathering?
Mechanical weathering is taking a big rock and breaking it down to small rocks by releasing pressure, freezing and thawing (water and ice), animal action, plant growth and abrasion. Chemical weathering is when a rock loses it shape but STILL IS MADE OF THE SAME METRICAL. Chemical weathering uses water, oxygen, carbon dioxide, living organism, and acid rain.
What is called when rocks break down without changing in chemical composition?
Mechanical weathering.
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.
What are non-examples of mechanical weathering?
Mechanical weathering is physical changes that break down and/or cracks the rock, such as ice wedging, temperature changes, root growth, or animal activity. Chemical weathering is a chemical change that changes the chemicals of the substance to make a new one. Examples of chemical weathering include oxidation, acid rain, hydration, and carbonation.
What is weathering and how it affects?
Weathering is the breaking down of rocks in situ. It acts through a variety of means, including frost shattering and ex-foliation. There are a number of different classifications of weathering, including biological, chemical and mechanical (including the aforementioned examples).Biological weathering includes the action of tree roots and animal burrowing, chemical includes chemical reactions and also corrosion due to dissolution of soluble minerals.I hope this answers your question.
What are some of the factors that influence or control the mechanical and chemical weathering of rocks?
Temperature, rainfall, vegetation, animal activity, type of rock being weathered.
What are the similarities between mechanical weathering and chemical weathering?
Both mechanical weathering (physically breaking rock into smaller pieces) and chemical weathering (chemically changing and even dissolving rock) result in rock layers being broken down. Water can be involved in both - freezing and then thawing lead to mechanical breaking by cracking rock, dissolving can lead to leaching chemical components of the rock, possibly weakening it and leading to pitting of the surface, for example. Also they both can break down some rocks faster than other rocks.
Animal burrows dug in rock that let in water and air?
mechanical weathering
The growth of plant roots and animal activity may result in .?
mechanical weathering
How animals can cause weathering?
Animal secrete acids and burrow into rocks and soil for shelter. Secreting acids cause chemical weathering. Animals burrowing causes mechanical weathering.
What is organic weathering?
Organic weathering is the breakdown of rocks by plants or animal action or by chemicals formed from plants and animals.
What are the three processes to mechanical weathering?
The processes for mechanical weathering are what change the rock completely. In chemical, it's what changes the rock into something different.For mechanical, there are four types of weathering.1) Abrasion: Sand and rock particles are carried by wind, water or ice and wear away exposed rock surfaces.2) Exfoliation: (heating and cooling of the rock)3) Bioturbation: * roots of trees and other plants enter cracks in rocks and eventually break them. * An animal that burrows in the ground.4) Frost action/ ice wedging: When water enters a rock and freezes which makes the rock expand and therefore, make the crack bigger. (Think of this like snow and ice and the side walks.)
