Environmental Science: Geomorphology and Eutrophication
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Questions and Answers

What term describes the high nitrate levels combined with phosphates that lead to excessive plant and algae growth?

  • Erosion
  • Estuary
  • Eutrophication (correct)
  • Flood Plain

    • What is the main result of freeze-thaw weathering in cold climates?

  • Excessive plant growth
  • Formation of U-shaped valleys
  • Changes in river channel flows
  • Cracking and breaking of rocks (correct)

    • Which of the following best describes geomorphology?

  • Study of erosional processes in rivers
  • Study of biodiversity in ecosystems
  • Study of climate change effects on land
  • Study of the origin of landforms and their changes (correct)

    • What is a characteristic feature of a drainage basin?

    <p>Land drained by a river and its tributaries</p> Signup and view all the answers

    What is typically found in an estuary?

    <p>Tidal mouths with exposed mud at low tide</p> Signup and view all the answers

    What characterizes a drainage basin?

    <p>It is the area of land drained by a river and its tributaries.</p> Signup and view all the answers

    What feature defines an estuary?

    <p>A tidal mouth of a river with expanses exposed at low tide.</p> Signup and view all the answers

    What is the primary cause of eutrophication in aquatic environments?

    <p>High levels of nitrates combined with phosphates.</p> Signup and view all the answers

    What describes a flood plain?

    <p>The wide flat area on a river valley formed by sediment deposits.</p> Signup and view all the answers

    What process primarily leads to freeze-thaw weathering?

    <p>Water freezing in cracks of rocks and expanding.</p> Signup and view all the answers

    What is a gorge in river processes?

    <p>A steep-sided, narrow rocky valley</p> Signup and view all the answers

    What does hydraulic action refer to?

    <p>The force of water eroding the riverbed</p> Signup and view all the answers

    What is a floodplain?

    <p>A wide flat area surrounding a river</p> Signup and view all the answers

    Which process occurs primarily in the lower course of a river?

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

    What are levees?

    <p>River embankments formed by sediment deposition</p> Signup and view all the answers

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