Weathering: Types and Processes

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Weathering includes degradation or breaking down of rocks into smaller segments known as sediments by the action of the following: water, ice, acids, salts, plants, animals, gravity, and changing ______

temperatures

Physical weathering is caused by the effects of changing ______ on rocks, causing the rock to break apart. The process is sometimes assisted by water.

temperatures

Abrasion occurs when rocks surface is frequently exposed to water, wind and ______

gravity

Freeze-Thaw occurs when water continually seeps into cracks, freezes and expands, eventually breaking the rock apart. It occurs in mountainous regions like the Alps or ______

Snowdonia Signup and view all the answers

Concrete highways is a human-made structure that is most vulnerable to weathering due to freezing and thawing cycle in mountainous ______

region Signup and view all the answers

Chemical weathering is caused by rainwater reacting with the mineral grains in rocks to form new minerals (clays) and soluble ______

salts Signup and view all the answers

Biological weathering occurs when rocks are weakened by different ______ agents like plants and animals.

biological Signup and view all the answers

When plant roots grow through rocks, it creates fracture and cracks that result eventually to rock ______.

breakage Signup and view all the answers

The process of growth or increase, typically by the gradual accumulation of additional layers or matter is called ______.

accretion Signup and view all the answers

Convection is the process of heat transfer by the bulk movement of molecules within fluids such as gases and ______.

liquids Signup and view all the answers

The process of transmission of energy from one particle of the medium to another with the particles being in direct contact with each other is known as ______.

conduction Signup and view all the answers

Heat from the decay of radioactive elements is a source of Earth’s internal ______.

heat Signup and view all the answers

Radioactive decay is the process by which an unstable atomic nucleus loses energy by ______.

radiation Signup and view all the answers

Isotopes are one of two or more species of atoms of a chemical element with the same atomic number and position in the periodic table but with different atomic masses and physical properties. They play a minor role in the production of heat due to its small ______ and low heat capacity.

abundance Signup and view all the answers

Endogenic process involves geologic activities such as tectonic movements, metamorphism, seismic activities, and ______.

magmatism Signup and view all the answers

Magma is formed from partial melting of ______ rocks.

mantle Signup and view all the answers

Weathering: Types and Processes

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