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How can animals cause weathering of rocks?

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How can animals cause weathering of rocks?

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Ways in which animals cause weathering of rocks are;

  • Burrowing animals lead to mechanical weathering by breaking up the rocks through digging.
  • Hooved animals like cattle exert pressure on rocks as they walk on them leading to breaking and disintegration.
  • Animals excrete chemical substances that may come into contact with the rocks and lead to chemical weathering.
  • Decaying animal remains give off organic fluids that may react with the rocks and lead to chemical weathering.

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What are factors influence the rate of weathering in rocks?

Factors that influence the rate of weathering in rocks include;PlantsAmount of waterSlopeClimateHuman activitiesTectonic movementsNature and weight of weathered materials.

What are examples of metamorphic rocks?

Examples of metamorphic rocks are;SchistQuartziteMarbleSlateDiamondGneiss

What are examples of volcanic rocks?

Examples of volcanic rocks are;RhyoliteAndesiteBasaltScoriaTrachyteObsidianPumiceTuff

What are types of physical weathering apart from block disintegration?

Types of physical weathering apart from block disintegration include;Granular disintegration Pressure release/unloadingSlakingCrystal growthExfoliationFrost action/Freeze and thaw action

What are characteristics of sedimentary rocks?

Characteristics of sedimentary rocks include;They are stratified/occur in layers.They are crystalline/have crystals.Some may contain fossils.

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