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Questions and Answers
Which process involves the breakdown of Earth's crust materials into smaller pieces?
Which process involves the breakdown of Earth's crust materials into smaller pieces?
- Weathering (correct)
- Deposition
- Mass wasting
- Erosion
What type of weathering is caused by the freezing and thawing of water that seeps into cracks of rocks?
What type of weathering is caused by the freezing and thawing of water that seeps into cracks of rocks?
- Exfoliation
- Abrasion
- Frost wedging (correct)
- Salt crystal growth
What type of weathering is caused by the rubbing and/or bouncing of rocks with each other?
What type of weathering is caused by the rubbing and/or bouncing of rocks with each other?
- Abrasion (correct)
- Biological activities
- Exfoliation
- Salt crystal growth
Which force exerted by salt crystals formed as water evaporates from pore spaces or cracks in rocks can cause the rock to fall apart?
Which force exerted by salt crystals formed as water evaporates from pore spaces or cracks in rocks can cause the rock to fall apart?
Which process involves the wind picking up small particles of sand and blasting large rocks with abrasive particles?
Which process involves the wind picking up small particles of sand and blasting large rocks with abrasive particles?
What type of weathering is caused by an organism's activity such as plant roots, burrowing animals, and humans?
What type of weathering is caused by an organism's activity such as plant roots, burrowing animals, and humans?
What is the process that breaks down rock through chemical changes?
What is the process that breaks down rock through chemical changes?
What are the two main factors that affect the rate, type, and extent of weathering?
What are the two main factors that affect the rate, type, and extent of weathering?
Compounds from burning coal, oil, and gas react chemically with water forming acids, thus causing rapid chemical weathering known as
Compounds from burning coal, oil, and gas react chemically with water forming acids, thus causing rapid chemical weathering known as
What is the process of breaking down rock through the dissociation of molecules into ions called?
What is the process of breaking down rock through the dissociation of molecules into ions called?
The physical weathering occurs more quickly on a steep slope than on a gentle one due to the influence of?
The physical weathering occurs more quickly on a steep slope than on a gentle one due to the influence of?
Which exogenic process involves the downslope movement of rock, regolith, sand, and soil under the direct influence of gravity?
Which exogenic process involves the downslope movement of rock, regolith, sand, and soil under the direct influence of gravity?
What causes iron to combine with oxygen in a process called oxidation?
What causes iron to combine with oxygen in a process called oxidation?
What is the primary factor that affects the rate of chemical weathering in different areas?
What is the primary factor that affects the rate of chemical weathering in different areas?
Which process weathers softer rock like limestone and marble as it seeps into spaces in the rock?
Which process weathers softer rock like limestone and marble as it seeps into spaces in the rock?
"Living organisms like lichens that grow on rocks produce weak acids that chemically weather rocks." What type of weathering is described in this statement?
"Living organisms like lichens that grow on rocks produce weak acids that chemically weather rocks." What type of weathering is described in this statement?
What is the process by which rocks are broken down into smaller pieces by external conditions?
What is the process by which rocks are broken down into smaller pieces by external conditions?
Which type of physical weathering is caused by the rubbing and/or bouncing of rocks with each other?
Which type of physical weathering is caused by the rubbing and/or bouncing of rocks with each other?
What force exerted by salt crystals formed as water evaporates from pore spaces or cracks in rocks can cause the rock to fall apart?
What force exerted by salt crystals formed as water evaporates from pore spaces or cracks in rocks can cause the rock to fall apart?
Which exogenic process involves the downslope movement of rock, regolith, sand, and soil under the direct influence of gravity?
Which exogenic process involves the downslope movement of rock, regolith, sand, and soil under the direct influence of gravity?
What causes iron to combine with oxygen in a process called oxidation?
What causes iron to combine with oxygen in a process called oxidation?
Compounds from burning coal, oil, and gas react chemically with water forming acids, thus causing rapid chemical weathering known as...
Compounds from burning coal, oil, and gas react chemically with water forming acids, thus causing rapid chemical weathering known as...
What is the process of breaking down rock through chemical changes called?
What is the process of breaking down rock through chemical changes called?
Which exogenic process involves the downslope movement of rock, regolith, sand, and soil under the direct influence of gravity?
Which exogenic process involves the downslope movement of rock, regolith, sand, and soil under the direct influence of gravity?
What causes iron to combine with oxygen in a process called oxidation?
What causes iron to combine with oxygen in a process called oxidation?
What type of weathering is caused by an organism's activity such as plant roots, burrowing animals, and humans?
What type of weathering is caused by an organism's activity such as plant roots, burrowing animals, and humans?
What force exerted by salt crystals formed as water evaporates from pore spaces or cracks in rocks can cause the rock to fall apart?
What force exerted by salt crystals formed as water evaporates from pore spaces or cracks in rocks can cause the rock to fall apart?
What type of physical weathering is caused by the rubbing and/or bouncing of rocks with each other?
What type of physical weathering is caused by the rubbing and/or bouncing of rocks with each other?
Which process involves the wind picking up small particles of sand and blasting large rocks with abrasive particles?
Which process involves the wind picking up small particles of sand and blasting large rocks with abrasive particles?
What type of weathering is caused by the freezing and thawing of water that seeps into cracks of rocks?
What type of weathering is caused by the freezing and thawing of water that seeps into cracks of rocks?
What type of weathering is caused by the rubbing and/or bouncing of rocks with each other?
What type of weathering is caused by the rubbing and/or bouncing of rocks with each other?
What is the primary factor that affects the rate of chemical weathering in different areas?
What is the primary factor that affects the rate of chemical weathering in different areas?
Study Notes
Weathering Processes
- Mechanical weathering involves the breakdown of Earth's crust materials into smaller pieces.
- Freeze-thaw weathering is caused by the freezing and thawing of water that seeps into cracks of rocks.
- Abrasion weathering is caused by the rubbing and/or bouncing of rocks with each other.
- Salt crystal weathering is caused by the force exerted by salt crystals formed as water evaporates from pore spaces or cracks in rocks, which can cause the rock to fall apart.
Erosion Processes
- Deflation weathering involves the wind picking up small particles of sand and blasting large rocks with abrasive particles.
- Bioerosion weathering is caused by an organism's activity such as plant roots, burrowing animals, and humans.
Chemical Weathering
- Chemical weathering involves the breakdown of rock through chemical changes.
- The process of breaking down rock through chemical changes is called chemical weathering.
- Acid rain, caused by compounds from burning coal, oil, and gas reacting chemically with water, can lead to rapid chemical weathering.
- Oxidation, which causes iron to combine with oxygen, is a type of chemical weathering.
- Biological weathering, caused by living organisms like lichens that grow on rocks and produce weak acids, is also a type of chemical weathering.
Factors Affecting Weathering
- The two main factors that affect the rate, type, and extent of weathering are temperature and precipitation.
- The primary factor that affects the rate of chemical weathering in different areas is the pH of the water.
- Gravity influences the rate of physical weathering, with steeper slopes experiencing more rapid weathering.
Gravity-Driven Processes
- Mass wasting, which involves the downslope movement of rock, regolith, sand, and soil under the direct influence of gravity, is a type of exogenic process.
- Gravity influences the rate of physical weathering, with steeper slopes experiencing more rapid weathering.
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Description
Learn about exogenic processes and geological phenomena that occur on Earth's surface, including weathering, mass wasting, erosion, and deposition. Understand the types of weathering, such as physical weathering and its subtypes like frost wedging.
