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Physical or mechanical weathering is caused by processes like frost wedging, root wedging, and abrasion, where physical forces break down rocks into smaller pieces. Chemical weathering, on the other hand, is caused by chemical reactions between rock minerals and substances in water or in the atmosphere, leading to the alteration or dissolution of the rock. Temperature changes, presence of water, oxygen, and acids are common factors that contribute to chemical weathering.
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What are the two causes of weathering?
The two main causes of weathering are physical weathering, which includes processes like freezing and thawing or abrasion, and chemical weathering, which involves the decomposition of rocks due to chemical reactions with water, oxygen, or acids.
What causes physical weathering but not chemical weathering?
Physical weathering is caused by mechanical forces such as temperature changes, frost wedging, and abrasion, while chemical weathering involves the breakdown of rock through chemical reactions like oxidation and hydrolysis. Physical weathering does not change the chemical composition of the rock, whereas chemical weathering alters the mineral structure.
What are the three main causes of weathering?
The three main causes of weathering are physical weathering (e.g. wind, water, and ice), chemical weathering (e.g. oxidation and hydrolysis), and biological weathering (e.g. plant roots and burrowing animals). These processes break down rocks and minerals into smaller particles over time.
What type of weathering causes acid rain?
Chemical weathering causes acid rain. When sulfur dioxide and nitrogen oxides are released into the atmosphere from human activities, they combine with water vapor to form sulfuric acid and nitric acid, which then fall to the earth's surface as acid rain.
Which type of weathering causes the mineral composition of rocks to change?
Chemical weathering is the type of weathering that causes the mineral composition of rocks to change. This process occurs when minerals in rocks react with elements in the environment, causing a chemical reaction that alters the rock's mineral composition over time.
What chemical weathering called oxidation causes and nbsp?
what chemical weathering called oxidation causes
What gas causes chemical weathering?
Oxygen is the major gas that is the cause chemical weathering.
What kind of weathering causes mineral composition of rocks to change?
Chemical weathering
What kind of weathering causes mineral composition of rock to change?
Chemical weathering
What kinds of weathering causes the mineral composition of rocks to change?
Chemical weathering
What is the following causes of chemical weathering of rock and soil except?
The causes of chemical weathering include exposure to water, oxygen, carbon dioxide, and acids. Erosion is a physical weathering process, not a chemical one.
What causes chemical weatering?
Chemical weathering is caused by chemical reactions in the substance, for example, when oxidation causes rusting.
Water causes what type of weathering?
Water causes mechanical and chemical weathering.
What is the natural process that causes rock to breakdown?
Weathering from mechanical and chemical means is the process that causes rocks to become smaller and smaller; wind, rain, the sun, the freeze/thaw cycle, moving glaciers, chemical reactions, and gravity are some of the causes of weathering.
What are the two causes of weathering?
The two main causes of weathering are physical weathering, which includes processes like freezing and thawing or abrasion, and chemical weathering, which involves the decomposition of rocks due to chemical reactions with water, oxygen, or acids.
How do acids in groundwater cause chemical weathering?
It causes chemical weathering because when it touches rocks, the rocks dissolve, forming caves.
What is weathering by acid rain?
Acidic rain causes chemical weathering to occur. Dissolution in particular.
