Grade 11 - TINDALO S.Y. 2022-2023 Q2 M1: Weathering
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Grade 11 - TINDALO S.Y. 2022-2023 Q2 M1: Weathering

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Questions and Answers

What is the process of breakdown of rocks on Earth called?

  • Volcanism
  • Erosion
  • Deposition
  • Weathering (correct)

    • Where does physical weathering happen especially?

  • Forest areas
  • Deserts and mountain regions (correct)
  • Tundra regions
  • Coastal areas

    • What occurs when rocks are exposed frequently to water, wind, and gravity?

  • Freeze Thaw
  • Acidification
  • Abrasion (correct)
  • Carbonation

    • What causes chemical weathering?

    <p>Rainwater reacting to the mineral grains in rocks</p> Signup and view all the answers

    Which process is responsible for the dissolution of carbon dioxide in rainwater, making it weakly acidic?

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

    Which process involves the breakdown of rocks by oxygen and water, often giving it a rusty-colored weathered surface?

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

    What is the source of Earth's internal heat resulting from the spontaneous breakdown of atomic nuclei?

    <p>Radioactive elements</p> Signup and view all the answers

    What is the process in which water reacts chemically with rocks, modifying its chemical structure?

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

    Which substance causes slow disintegration of rocks by reacting with them, and is produced by some plants and animals?

    <p>Acidic substances</p> Signup and view all the answers

    What geological process is formed, originated, and located below the surface of the earth?

    <p>Tectonic movements</p> Signup and view all the answers

    Which process of physical weathering occurs when water continually seeps into cracks, freezes, and expands, eventually breaking the rock apart?

    <p>Freeze Thaw</p> Signup and view all the answers

    In which environment does chemical weathering rapidly occur?

    <p>Warm and damp</p> Signup and view all the answers

    What is the main cause of acid rain that contributes to acidification in chemical weathering?

    <p>Sulfur dioxide and nitrogen dioxide</p> Signup and view all the answers

    Where does physical weathering predominantly occur?

    <p>Deserts and mountain regions</p> Signup and view all the answers

    What is the process of breakdown of rocks by oxygen and water known as?

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

    What geological process involves the loss of pressure on rocks resulting in a layer being stripped off, resembling an 'onion skin'?

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

    What geological process involves the formation of magma from partial melting of mantle rocks?

    <p>Decompression melting</p> Signup and view all the answers

    Which of the following substances causes slow disintegration of rocks by reacting with them, and is produced by some plants and animals?

    <p>Carbon dioxide</p> Signup and view all the answers

    What is the source of Earth's internal heat resulting from the spontaneous breakdown of atomic nuclei?

    <p>Radiogenic heat</p> Signup and view all the answers

    Which process involves the breakdown of rocks by oxygen and water, often giving it a rusty-colored weathered surface?

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

    What occurs when there is a reduction in pressure, causing partial melting of mantle rocks at usual temperatures?

    <p>Decompression melting</p> Signup and view all the answers

    What is the process of breakdown of rocks by acidic or basic water, reacting with rock-forming minerals to produce clay?

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

    Which of the following elements results from the spontaneous breakdown of an atomic nucleus, causing the release of energy and matter?

    <p>$^{40}$Potassium</p> Signup and view all the answers

    What is the main cause of rocks being weakened by biological agents such as plants and animals?

    <p>Chemical compounds</p> Signup and view all the answers

    What are the early forms of planets referred to as?

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

    What is the process where rocks are broken down by wind, water, or ice known as?

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

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