Weathering: Process of Rock Breakdown
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Questions and Answers

What is weathering?

  • The process of melting rocks
  • The process by which rocks are broken down (correct)
  • The process of solidifying rocks
  • The process of rock formation

    • How is the process of weathering related to a chocolate chip cookie?

  • Both involve human teeth
  • Both involve temperature fluctuations
  • Both involve mechanical and chemical breakdown (correct)
  • Both involve the production of saliva

    • What role do environmental elements play in the weathering of rocks?

  • They have no influence on weathering
  • They increase rock resistance to weathering
  • They protect rocks from weathering
  • They mechanically and chemically break down rocks (correct)

    • How do cracks in rocks widen due to weathering?

    <p>Due to the growth of plant roots inside the cracks</p> Signup and view all the answers

    What happens when ice freezes within cracks in rocks?

    <p>It expands, widening the cracks</p> Signup and view all the answers

    How do minerals within rocks break down during weathering?

    <p>By mixing with water, acids, and atmospheric gases</p> Signup and view all the answers

    Why are covered rocks relatively protected from weathering compared to exposed rocks?

    <p>Covered rocks are shielded from environmental elements like wind and water</p> Signup and view all the answers

    What factor accelerates the weathering rate by providing more surface area for chemical weathering to occur?

    <p>Porous structure of rocks</p> Signup and view all the answers

    Which mineral reacts with oxygen to form iron oxide, leading to a weaker structure and faster weathering of rocks?

    <p>Iron</p> Signup and view all the answers

    How does the presence of calcite, a mineral found in limestone, affect the weathering process?

    <p>It dissolves in carbonic acid, accelerating weathering</p> Signup and view all the answers

    In what type of climate is chemical weathering accelerated due to the presence of water?

    <p>Warm and humid climates</p> Signup and view all the answers

    Why do warmer climates accelerate chemical weathering compared to colder climates?

    <p>Heat speeds up chemical reactions</p> Signup and view all the answers

    Which type of rock is more likely to experience faster weathering due to being very porous?

    <p>Porous rocks</p> Signup and view all the answers

    What happens to rocks that contain soft minerals like calcite when exposed to carbonic acid?

    <p>They dissolve and weather more rapidly</p> Signup and view all the answers

    Why would a limestone wall placed in a tropical island weather more quickly than a similar wall placed in a dry desert?

    <p>Tropical environments accelerate chemical weathering</p> Signup and view all the answers

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