Weathering Practice Quiz! Trivia Questions

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Weathering Practice Quiz! Trivia Questions - Quiz


Weathering explains the breaking down or dissolving of rock and minerals on the surface of the earth. Water, ice, acids, salts, plants, animals, and temperature changes are all presentations of weathering. Weathering and erosion frequently change the rocky landscape of the earth. Weathering is frequently the first step in the production of soils. If you want to know more about weathering, try this quiz.


Questions and Answers
  • 1. 

    Weathering is the process that

    • A.

      Carries material to a new location

    • B.

      Breaks material down

    • C.

      Presses material together

    • D.

      Glues material together

    Correct Answer
    B. Breaks material down
    Explanation
    Weathering is the process that breaks material down. This refers to the physical, chemical, and biological processes that cause rocks, minerals, and other materials to disintegrate or decompose over time. It can occur through various mechanisms such as temperature changes, water erosion, wind abrasion, and the actions of living organisms. Ultimately, weathering leads to the breakdown and fragmentation of materials, resulting in their transformation into smaller particles or dissolved substances.

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  • 2. 

    Mechanical weathering is also known as

    • A.

      Philanthropic weathering

    • B.

      Machine weathering

    • C.

      Physical weathering

    • D.

      Chemical weathering

    Correct Answer
    C. Physical weathering
    Explanation
    Mechanical weathering refers to the physical breakdown of rocks into smaller fragments without any change in their chemical composition. This process is caused by physical forces such as temperature changes, pressure, and abrasion. Therefore, the correct answer is physical weathering.

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  • 3. 

    Mechanical weathering is the

    • A.

      Breakdown of rock into smaller pieces by physical means

    • B.

      Breakdown of rock into smaller pieces by chemical means

    • C.

      Breakdown of rock into smaller pieces by acid

    • D.

      Carrying away of sediment

    Correct Answer
    A. Breakdown of rock into smaller pieces by physical means
    Explanation
    Mechanical weathering refers to the process of breaking down rocks into smaller pieces through physical means, such as temperature changes, pressure, or the actions of wind and water. This can occur through processes like frost wedging, where water freezes and expands in cracks, causing the rock to break apart. It can also happen through abrasion, where rocks rub against each other, wearing them down over time. Chemical weathering, on the other hand, involves the breakdown of rocks through chemical reactions, while the carrying away of sediment is a result of erosion, not weathering.

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  • 4. 

    When water freezes it

    • A.

      Shrinks

    • B.

      Turns blue

    • C.

      Expands

    • D.

      Gives off a gas

    Correct Answer
    C. Expands
    Explanation
    When water freezes, it expands. This is because the water molecules slow down and form a crystalline structure, causing them to move farther apart. As a result, the volume of the water increases, leading to expansion. This expansion is why ice is less dense than liquid water, causing it to float on top of water bodies.

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  • 5. 

    Ice wedging is when

    • A.

      Ice is used to wedge open a container

    • B.

      A chemical reaction takes place between water and the rock

    • C.

      Rain creates pockets in a rock

    • D.

      Ice expands causing cracks to widen

    Correct Answer
    D. Ice expands causing cracks to widen
    Explanation
    Ice wedging is a process that occurs when water enters cracks in rocks and freezes. When water freezes, it expands, exerting pressure on the surrounding rock. This expansion causes the cracks to widen and eventually break apart the rock. This process is especially common in regions with freezing and thawing cycles, where water can repeatedly freeze and melt, further widening the cracks over time.

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  • 6. 

    Ice wedging is an example of

    • A.

      Erosion

    • B.

      Chemical weathering

    • C.

      Chemical abrasion

    • D.

      Mechanical weathering

    Correct Answer
    D. Mechanical weathering
    Explanation
    Ice wedging is a process in which water enters cracks in rocks or soil, freezes, and expands, causing the cracks to widen and break apart. This process is a form of mechanical weathering because it physically breaks down the rock or soil without any chemical changes taking place. It is not a form of erosion because it does not involve the movement of material, and it is not a form of chemical weathering or chemical abrasion because it does not involve any chemical reactions.

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  • 7. 

    Wind abrasion is most likely to happen

    • A.

      In a wet location

    • B.

      In a forest

    • C.

      In a desert

    • D.

      In a river

    Correct Answer
    C. In a desert
    Explanation
    Wind abrasion is most likely to happen in a desert because deserts are characterized by dry and arid conditions with minimal vegetation and loose, unconsolidated sand and rock particles. In such an environment, strong winds can easily pick up and transport these loose particles, causing them to collide with other surfaces and erode them over time. The lack of vegetation and moisture in deserts also contributes to the absence of protective cover, making it easier for wind to exert its abrasive force on exposed surfaces.

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  • 8. 

    Wind blown sand hitting a rock and slowly wearing it away is an example of

    • A.

      Physical weathering

    • B.

      Chemical weathering

    • C.

      Mechanical erosion

    • D.

      Chemical erosion

    Correct Answer
    A. Physical weathering
    Explanation
    Wind blown sand hitting a rock and slowly wearing it away is an example of physical weathering. Physical weathering refers to the breakdown of rocks into smaller pieces without any change in their chemical composition. In this case, the sand particles act as abrasives and physically break down the rock surface through constant impact, leading to its gradual erosion.

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  • 9. 

    A ventifact is

    • A.

      A smooth river rock

    • B.

      A rock worn away by acid precipitation

    • C.

      A rock worn away by wind

    • D.

      A type of rock that weathers easily by acid precipitation

    Correct Answer
    C. A rock worn away by wind
    Explanation
    A ventifact is a rock worn away by wind. Wind erosion can cause abrasion on the surface of rocks, resulting in smooth and polished surfaces. This process occurs in areas with strong winds and limited vegetation cover, where the blowing sand and particles act as sandpaper on the rocks. Over time, the constant wind action wears away the softer parts of the rock, leaving behind a ventifact with distinctive features shaped by the prevailing wind direction.

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  • 10. 

    A mushroom rock forms because

    • A.

      Water only hits the lower part of it

    • B.

      Wind blown sand only can reach the lower part of it

    • C.

      Of stalactites forming in a cave

    • D.

      Of oxidation

    Correct Answer
    B. Wind blown sand only can reach the lower part of it
    Explanation
    A mushroom rock forms because wind blown sand only can reach the lower part of it. This means that over time, the wind carries sand particles that erode the lower part of the rock, while the upper part remains protected. As a result, the rock takes on a mushroom-like shape with a narrower stem and a larger cap. This process is known as differential erosion and is commonly seen in desert environments where strong winds and loose sand are prevalent.

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  • 11. 

    Gravity abrasion happens when

    • A.

      Waterfalls wear away at the rocks under them

    • B.

      Water falls to the earth as precipitation and hits exposed rock

    • C.

      Rocks roll along the bottom of a river

    • D.

      Rocks fall down and scrape against other rocks

    Correct Answer
    D. Rocks fall down and scrape against other rocks
    Explanation
    Gravity abrasion occurs when rocks fall down and scrape against other rocks. This process is commonly observed in steep slopes or cliffs where rocks become dislodged and tumble downwards. As they descend, the rocks collide with other rocks, causing them to scrape and erode each other. This continuous scraping and rubbing action gradually wears away the surfaces of the rocks, leading to their abrasion. This mechanism is one of the key factors responsible for the formation of rocky landscapes, such as canyons, valleys, and cliffs.

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  • 12. 

    If you saw a crack in the road in the winter that was not there the month before, it most likely formed by

    • A.

      Plants

    • B.

      Ice wedging

    • C.

      Water abrasion

    • D.

      Acid precipitation

    Correct Answer
    B. Ice wedging
    Explanation
    Ice wedging is the most likely explanation for the formation of a crack in the road during winter that was not there the month before. Ice wedging occurs when water seeps into cracks in rocks or pavement, freezes, and expands, causing the crack to widen. This process is common during winter months when temperatures fluctuate above and below freezing. As the water freezes and thaws repeatedly, the crack gradually expands, leading to the formation of a visible crack in the road.

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  • 13. 

    Smooth and round rocks most likely formed because of

    • A.

      A river

    • B.

      Acid precipitation

    • C.

      Wind

    • D.

      Oxidation

    Correct Answer
    A. A river
    Explanation
    Smooth and round rocks most likely formed because of a river. Over time, as water flows over rocks, it can erode and wear them down, resulting in smooth and rounded shapes. The constant movement and force of the water, combined with the sediments and particles it carries, contribute to the abrasion and shaping of the rocks. This process is known as fluvial erosion and is commonly observed in riverbeds and along riverbanks. The continuous action of the flowing water gradually smooths and rounds the rocks, giving them their distinct shape.

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  • 14. 

    Water abrasion happens when

    • A.

      Water gets in a crack and freezes

    • B.

      Acidic groundwater slowly eats a hole in the surrounding rock

    • C.

      Water slowly drips from icicles

    • D.

      Rocks and sediment rub and scratch against each other in a river or ocean

    Correct Answer
    D. Rocks and sediment rub and scratch against each other in a river or ocean
    Explanation
    Water abrasion occurs when rocks and sediment in a river or ocean rub and scratch against each other. This constant friction and movement cause the rocks and sediment to wear away and become smoother over time. This process is similar to how sandpaper works, gradually eroding the surface of the rocks and sediment.

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  • 15. 

    Seeing a tree growing out of a rock would cause

    • A.

      Chemical weathering

    • B.

      Mechanical weathering

    • C.

      Physical erosion

    • D.

      Compaction

    Correct Answer
    B. Mechanical weathering
    Explanation
    Mechanical weathering refers to the physical breakdown of rocks into smaller pieces without any change in their chemical composition. Seeing a tree growing out of a rock suggests that the roots of the tree have exerted pressure on the rock, causing it to crack and break apart. This process is an example of mechanical weathering as it involves the physical forces exerted by the tree roots.

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  • 16. 

    Can moles burrowing in the ground cause weathering?  If so, what type?

    • A.

      No they can't

    • B.

      Yes, chemical weathering

    • C.

      Yes, mechanical weathering

    • D.

      Yes, both chemical and mechanical

    Correct Answer
    C. Yes, mechanical weathering
    Explanation
    Moles burrowing in the ground can cause mechanical weathering. As they dig tunnels and burrows, they break up rocks and soil, causing physical disintegration of the materials. This process is known as mechanical weathering, where the physical forces exerted by the moles contribute to the breakdown of rocks and sediments.

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  • 17. 

    Chemical weathering is when

    • A.

      Rock is broken down by chemical reactions

    • B.

      Rock is broken down by physical means

    • C.

      Rock is broken down by salts

    • D.

      Rock is carried away by acid

    Correct Answer
    A. Rock is broken down by chemical reactions
    Explanation
    Chemical weathering refers to the process of rock breakdown through chemical reactions. This can occur when certain chemicals in the environment, such as water or acids, react with the minerals present in the rock, causing them to dissolve or undergo chemical changes. Unlike physical weathering, which involves the mechanical breakdown of rocks through forces like wind or water erosion, chemical weathering involves the alteration of the rock's composition. Salts or acids may contribute to this process by facilitating chemical reactions that break down the rock.

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  • 18. 

    Can acid rain burn your skin?

    • A.

      Yes, all the time

    • B.

      No

    • C.

      Only sometimes

    Correct Answer
    B. No
    Explanation
    Acid rain is a type of rain that contains high levels of acidic pollutants, such as sulfur dioxide and nitrogen oxide. While acid rain can cause damage to buildings, vegetation, and aquatic life, it does not typically burn the skin. The acidity of acid rain is relatively mild and not strong enough to cause immediate burning or harm to human skin. However, prolonged exposure to acid rain can have indirect effects on human health by contaminating water sources and food supplies.

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  • 19. 

    Acid precipitation and acid in groundwater weather what two types of rock the most?

    • A.

      Limestone and shale

    • B.

      Limestone and obsidian

    • C.

      Marble and shale

    • D.

      Marble and limestone

    Correct Answer
    D. Marble and limestone
    Explanation
    Acid precipitation and acid in groundwater primarily weather marble and limestone. Acidic water can dissolve the calcium carbonate present in these rocks, leading to their erosion and weathering. This process is particularly significant in areas with high levels of acid rain or acidic groundwater, resulting in the formation of unique landforms such as caves, sinkholes, and karst landscapes. Limestone and shale are also affected by acid precipitation, but marble and limestone are more susceptible to weathering due to their higher calcium carbonate content. Obsidian, a volcanic glass, is not composed of minerals that can be easily weathered by acid.

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  • 20. 

    Rocks that have _________________ are more likely to be weathered by acid.

    • A.

      Fossils

    • B.

      Carbon monoxide

    • C.

      Calcium carbonate

    • D.

      Salts

    Correct Answer
    C. Calcium carbonate
    Explanation
    Rocks that have calcium carbonate are more likely to be weathered by acid because calcium carbonate is a compound that reacts with acid to form a soluble salt, carbon dioxide gas, and water. This process is known as acid rain or acid dissolution. The reaction between calcium carbonate and acid weakens the rock structure, leading to weathering and erosion over time.

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  • 21. 

    Acid precipitation is an example of

    • A.

      Mechanical breakdown

    • B.

      Chemical weathering

    • C.

      Physical weathering

    • D.

      Acidifica weathering

    Correct Answer
    B. Chemical weathering
    Explanation
    Acid precipitation refers to rain, snow, or any other form of precipitation that has a pH level below 5.6, which is considered acidic. This acidity is primarily caused by the presence of pollutants such as sulfur dioxide and nitrogen oxide in the atmosphere, which react with water vapor to form sulfuric acid and nitric acid respectively. When these acids fall to the ground through precipitation, they can cause the chemical breakdown and decomposition of rocks, minerals, and other materials on the Earth's surface. Therefore, acid precipitation is an example of chemical weathering, as it involves the chemical alteration and degradation of substances through acidic reactions.

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  • 22. 

    Acids in groundwater can

    • A.

      Create caves

    • B.

      Cause mountains to form

    • C.

      Cause plants to grow

    • D.

      Create salt lakes

    Correct Answer
    A. Create caves
    Explanation
    Acids in groundwater can create caves. Groundwater, which is water that exists beneath the Earth's surface, can contain acids that are formed through the chemical weathering of rocks. Over time, these acids can dissolve and erode certain types of rocks, such as limestone and dolomite, creating underground cavities and passages. This process, known as karstification, is responsible for the formation of caves, stalactites, and stalagmites. The acidic groundwater slowly dissolves the rock, carving out intricate cave systems underground.

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  • 23. 

    Lichens growing on a rock would cause

    • A.

      Mechanical weathering

    • B.

      Chemical weathering

    • C.

      Caves to form

    • D.

      Abrasion

    Correct Answer
    B. Chemical weathering
    Explanation
    Lichens growing on a rock can cause chemical weathering. Lichens are composite organisms consisting of a fungus and a photosynthetic partner, such as algae or cyanobacteria. They release organic acids as they metabolize, which can react with the minerals in the rock, leading to the breakdown and decomposition of the rock material. This process is known as chemical weathering, as it involves the chemical alteration of the rock's composition.

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  • 24. 

    How do lichens weather a rock?

    • A.

      Their roots grow into the rock

    • B.

      They produce a weak acid

    • C.

      They oxidize the rock

    • D.

      They cause the rock to freeze more easily

    Correct Answer
    B. They produce a weak acid
    Explanation
    Lichens weather a rock by producing a weak acid. This acid helps to break down the minerals present in the rock, making it easier for the lichens to extract nutrients. As the acid gradually weakens the rock, it causes it to weather and erode over time. This process is important for the colonization and growth of lichens on rocky surfaces.

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  • 25. 

    Oxidation is an example of

    • A.

      Chemical weathering

    • B.

      Cementation

    • C.

      Physical weathering

    • D.

      Abrasive weathering

    Correct Answer
    A. Chemical weathering
    Explanation
    Oxidation is a process in which a substance combines with oxygen, resulting in a chemical change. In the context of weathering, oxidation refers to the reaction of minerals or rocks with oxygen in the presence of water or moisture. This reaction can lead to the breakdown and alteration of the minerals, causing them to weaken or disintegrate. Therefore, oxidation is considered a form of chemical weathering, as it involves the chemical transformation of materials due to the interaction with oxygen.

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  • 26. 

    Oxidation can cause some rocks to

    • A.

      Form crevasses

    • B.

      Get small oval shape wholes in them

    • C.

      Turn white

    • D.

      Rust

    Correct Answer
    D. Rust
    Explanation
    Oxidation is a chemical reaction that occurs when a substance reacts with oxygen. In the case of rocks, when they are exposed to oxygen over time, the iron minerals present in them can undergo oxidation and form rust. Rust is a reddish-brown coating that appears on the surface of rocks, giving them a characteristic color. Therefore, the correct answer is "rust."

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  • 27. 

    If you see a red rock, chances are it has been through what type of weathering?

    • A.

      Abrasive weathering

    • B.

      Mechanical weathering

    • C.

      Chemical weathering

    • D.

      Ligonight weathering

    Correct Answer
    C. Chemical weathering
    Explanation
    Chemical weathering is the correct answer because it refers to the breakdown of rocks and minerals through chemical reactions. When rocks are exposed to certain chemicals, such as water, oxygen, carbon dioxide, or acids, they can undergo chemical changes that cause them to break down. This process is often responsible for the formation of red rocks, as certain minerals, like iron oxide, can react with oxygen and water to produce a reddish color. Therefore, if you see a red rock, it is likely that it has undergone chemical weathering.

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  • 28. 

    What type of weathering is when oxygen reacts with a compound in the rock?

    • A.

      Acids in living things

    • B.

      Oxidation

    • C.

      Acid precipitation

    • D.

      Water abrasion

    Correct Answer
    B. Oxidation
    Explanation
    Oxidation is the correct answer because it refers to a type of weathering where oxygen reacts with a compound in the rock. This reaction causes the rock to break down and change its composition. It is a common form of weathering that occurs when minerals in the rock are exposed to oxygen in the air or water. Over time, this process can weaken the rock and cause it to crumble or disintegrate.

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  • 29. 

    A rock slide would most likely cause

    • A.

      Chemical weathering

    • B.

      Physical weathering

    • C.

      Acids in groundwater

    • D.

      Chemical erosion

    Correct Answer
    B. Physical weathering
    Explanation
    A rock slide is a physical event where large rocks or boulders detach from a slope and slide down. This process involves the physical breaking and fragmentation of rocks due to the force of gravity. Therefore, a rock slide would most likely cause physical weathering, which refers to the breakdown of rocks into smaller pieces without any chemical changes. Chemical weathering involves the alteration of rock composition through chemical reactions, acids in groundwater can cause chemical weathering, and chemical erosion involves the removal of rock material through chemical processes. However, in the case of a rock slide, the primary process involved is physical weathering.

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  • 30. 

    Abrasion occurs when

    • A.

      Acid eats away at a rock

    • B.

      Rocks experience a chemical force

    • C.

      Rocks are put under extreme pressure

    • D.

      Rocks bump and scrape against each other

    Correct Answer
    D. Rocks bump and scrape against each other
    Explanation
    Abrasion occurs when rocks bump and scrape against each other. This physical force causes the rocks to wear down and erode over time. The constant friction between the rocks leads to the breaking off of small pieces, resulting in a smooth and polished surface. Acid eating away at a rock, rocks experiencing a chemical force, or rocks being put under extreme pressure are not examples of abrasion, as they involve different processes and forces.

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  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Feb 11, 2011
    Quiz Created by
    Marquart
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