Water Balance Quiz
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Questions and Answers

What does the water balance equation represent?

  • Precipitation minus outputs like evaporation and transpiration (correct)
  • Runoff variation in a drainage basin
  • River discharge during flood events
  • Soil moisture levels affected by precipitation

How are storm hydrographs influenced by human factors?

  • Saturation and drainage basin size
  • Urbanization and discharge variability
  • Soil moisture and rock type
  • Deforestation and water abstraction (correct)

Which factor can lower water tables and lead to saline intrusion in coastal areas?

  • Runoff variation
  • Water abstraction (correct)
  • Deforestation
  • Saturation

What do soil moisture graphs track over a year?

<p>Water levels in soils (C)</p> Signup and view all the answers

Which physical factors influence storm hydrographs?

<p>Drainage basin size and shape (C)</p> Signup and view all the answers

How do land use changes like deforestation affect flooding?

<p>Increase flooding due to less interception of rainfall (A)</p> Signup and view all the answers

What is the primary focus of river regimes studies?

<p>Discharge variability over a year (A)</p> Signup and view all the answers

How is flood speed influenced according to storm hydrographs?

<p>Lag time between peak rainfall and discharge (C)</p> Signup and view all the answers

What is the main purpose of soil moisture graphs?

<p>Track water levels in soils over a year (D)</p> Signup and view all the answers

How do human factors like urbanization influence storm hydrographs?

<p>Impact storm hydrographs and flood risk (C)</p> Signup and view all the answers

Which factor contributes to increased flooding due to decreased interception of rainfall?

<p>Deforestation (C)</p> Signup and view all the answers

How do heavy rainfall events impact runoff variation in rivers?

<p>Increase discharge (D)</p> Signup and view all the answers

What does the lag time between peak rainfall and river discharge influence in storm hydrographs?

<p>Flood speed (D)</p> Signup and view all the answers

How can water abstraction for human use impact groundwater quality?

<p>Lead to saline intrusion in coastal areas (D)</p> Signup and view all the answers

Which physical factor influences storm hydrographs by affecting factors like saturation and rock type?

<p>Drainage basin size (A)</p> Signup and view all the answers

What do river regimes study in terms of discharge over a year?

<p>'River discharge variability' (A)</p> Signup and view all the answers

What is the primary purpose of studying runoff variation in rivers?

<p>To analyze factors like discharge influenced by heavy rainfall and drainage basin size (C)</p> Signup and view all the answers

How do storm hydrographs differ from river regimes studies?

<p>Storm hydrographs measure river discharge during flood events, while river regimes study discharge variability over a year (A)</p> Signup and view all the answers

How can urbanization impact storm hydrographs and flood risk?

<p>By introducing impermeable surfaces that increase surface runoff (A)</p> Signup and view all the answers

Which factor can influence storm hydrographs by impacting factors like saturation and rock type?

<p>Deforestation (B)</p> Signup and view all the answers

What is the impact of land use changes like deforestation on flooding?

<p>Increased flooding due to less interception of rainfall (A)</p> Signup and view all the answers

How does water abstraction for human use affect storm hydrographs?

<p>By lowering water tables and causing saline intrusion in coastal areas (B)</p> Signup and view all the answers

What role do storm hydrographs play in understanding flood events?

<p>Measuring river discharge during flood events (C)</p> Signup and view all the answers

How do physical factors like drainage basin size influence storm hydrographs?

<p>By affecting factors like saturation, rock type, and runoff variations (C)</p> Signup and view all the answers

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