Wed. Jan 8th, 2025

Karst Geomorphology

  1. What is the main source of groundwater?

    Options:
    1. Seawater
    2. River water
    3. Rainwater and meltwater
    4. Surface water

    Option: C

  2. What are aquifers?

    Options:
    1. Bodies of water found on the surface of the earth
    2. Storage pools of groundwater lying below the ground surface
    3. Large underground caves
    4. Streams and rivers

    Option: B

  3. Which type of rock forms the most ideal aquifers?

    Options:
    1. Igneous rock
    2. Sedimentary rock
    3. Metamorphic rock
    4. Volcanic rock

    Option: B

  4. What is the process of filling the pore spaces of regoliths and permeable rocks with water called?

    Options:
    1. Saturation
    2. Percolation
    3. Infiltration
    4. Precipitation

    Option: A

  5. What is the zone called when spaces are filled with water?

    Options:
    1. Unsaturated zone
    2. Saturated zone
    3. Phreatic zone
    4. Vadose zone

    Option: B

  6. The upper level of the saturated zone is called

    Options:
    1. Unsaturated zone
    2. Phreatic zone
    3. Water table
    4. Aeration zone

    Option: C

  7. The impermeable bed separating two aquifers is known as

    Options:
    1. Aquiclude
    2. Water table
    3. Perched water table
    4. Confined water reservoir

    Option: A

  8. What is produced when an aquifer is sandwiched between two impermeable beds or aquicludes?

    Options:
    1. Confined water reservoir
    2. Perched water table
    3. Unsaturated zone
    4. Saturated zone

    Option: A

  9. What is the water table of the upper aquifer called when an aquiclude lies between two aquifers?

    Options:
    1. Water table
    2. Perched water table
    3. Unsaturated zone
    4. Confined water reservoir

    Option: B

  10. Chemical process that forms calcium hydroxide is a

    Options:
    1. Reaction of water with carbon dioxide
    2. Reaction of water with calcium oxide
    3. Dissociation of carbonic acid
    4. Dissociation of calcium carbonate

    Option: B

  11. What is the chemical process that forms calcium carbonate?

    Options:
    1. Reaction of water with carbon dioxide
    2. Reaction of calcium hydroxide with carbon dioxide
    3. Dissociation of carbonic acid
    4. Dissociation of calcium carbonate

    Option: B

  12. The chemical process that forms carbonic acid is

    Options:
    1. Reaction of water with calcium oxide
    2. Reaction of calcium hydroxide with carbon dioxide
    3. Dissociation of carbonic acid
    4. Dissolution of calcium carbonate in water

    Option: A

  13. What is the source of acidity in a solution containing carbonic acid?

    Options:
    1. Positive hydrogen ions
    2. Negative bicarbonate ions
    3. Both positive hydrogen ions and negative bicarbonate ions
    4. Neutral water molecules

    Option: C

  14. What happens when calcium carbonate dissociates in pure water?

    Options:
    1. It forms calcium hydroxide and carbon dioxide
    2. It forms carbonic acid and water
    3. It forms a metal cation and carbonate anion
    4. It forms calcium bicarbonate

    Option: C

  15. What is the product of the chemical reaction between calcium carbonate, carbon dioxide, and water?

    Options:
    1. Calcium hydroxide
    2. Carbonic acid
    3. Calcium bicarbonate
    4. Magnesium carbonate

    Option: C

  16. Which of the following factors affect the amount of dissolution of carbonate rocks?

    Options:
    1. Temperature, pressure, and the chemical composition of the rocks
    2. Flow rate and the nature of the groundwater
    3. Atmospheric carbon dioxide, organic carbon dioxide, and the route of water flow
    4. All of the above

    Option: D

  17. What causes the deposition of sediments in karst topography?

    Options:
    1. Obstruction in the flow path of groundwater
    2. Evaporation of water
    3. Decrease in solution capacity of groundwater
    4. All of the above

    Option: D

  18. Where is the Karst region situated?

    Options:
    1. Along the western margin of the Adriatic Sea
    2. Along the eastern margin of the Adriatic Sea
    3. Along the western margin of the Pacific Ocean
    4. Along the eastern margin of the Pacific Ocean

    Option: B

  19. The characteristic features of the Karst region of Yugoslavia are

    Options:
    1. Sandy beaches and shallow waters
    2. Solution holes, ravines, gullies, clefts, and narrow valleys
    3. High mountains and deep valleys
    4. Flat terrain and grasslands

    Option: B

  20. Term used to describe the limestone topography all over the world having characteristic features similar to the Karst region of Yugoslavia is known as

    Options:
    1. Dolomite topography
    2. Chalk topography
    3. Limestone topography
    4. Karst topography

    Option: D