MCQs on Mushroom rock, Sand dunes, barkhan, loess, and groundwater – World Geography
Q1. What is a mushroom rock?
a. A type of sand dune
b. A rock formation with a thin base and a wide top
c. A deposit of windblown silt
d. A type of groundwater
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Correct Answer: b. A rock formation with a thin base and a wide top
Explanation: A mushroom rock is a rock formation with a thin base and a wide top, formed by the differential erosion of softer rock layers beneath harder rock layers.
Q2. What is a sand dune?
a. A type of rock formation
b. A mound or ridge of sand formed by wind
c. A deposit of windblown silt
d. A type of groundwater
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Correct Answer: b. A mound or ridge of sand formed by wind
Explanation: A sand dune is a mound or ridge of sand formed by the action of wind, usually found in deserts or near coastal areas.
Q3. What is a barkhan?
a. A type of sand dune
b. A rock formation with a thin base and a wide top
c. A deposit of windblown silt
d. A type of groundwater
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Correct Answer: a. A type of sand dune
Explanation: A barkhan is a type of sand dune, characterized by its crescent shape and formed by the action of wind in desert regions.
Q4. What is loess?
a. A type of rock formation
b. A mound or ridge of sand formed by wind
c. A deposit of windblown silt
d. A type of groundwater
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Correct Answer: c. A deposit of windblown silt
Explanation: Loess is a deposit of windblown silt, typically found in areas adjacent to deserts or other sources of fine-grained sediment.
Q5. What is groundwater?
a. A type of rock formation
b. A mound or ridge of sand formed by wind
c. A deposit of windblown silt
d. Water that is stored underground in soil and rock formations
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Correct Answer: d. Water that is stored underground in soil and rock formations
Explanation: Groundwater is water that is stored underground in soil and rock formations, filling the spaces between particles and fractures in the subsurface.
Q6. Which of the following is a factor that influences the formation of sand dunes?
a. Wind speed and direction
b. The amount of sand available
c. The presence of vegetation
d. All of the above
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Correct Answer: d. All of the above
Explanation: The formation of sand dunes is influenced by factors such as wind speed and direction, the amount of sand available, and the presence of vegetation, which can help to stabilize the dune.
Q7. Which of the following is a characteristic of a mushroom rock?
a. A thin base and a wide top
b. A crescent shape
c. A mound or ridge of sand
d. A deposit of windblown silt
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Correct Answer: a. A thin base and a wide top
Explanation: A mushroom rock is characterized by its thin base and wide top, formed by the differential erosion of softer rock layers beneath harder rock layers.
Q8. Which of the following is a characteristic of a barkhan?
a. A thin base and a wide top
b. A crescent shape
c. A mound or ridge of sand
d. A deposit of windblown silt
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Correct Answer: b. A crescent shape
Explanation: A barkhan is characterized by its crescent shape, formed by the action of wind in desert regions.
Q9. Which of the following is a characteristic of loess?
a. A thin base and a wide top
b. A crescent shape
c. A mound or ridge of sand
d. A fine-grained, windblown sediment
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Correct Answer: d. A fine-grained, windblown sediment
Explanation: Loess is characterized by its fine-grained, windblown sediment, typically found in areas adjacent to deserts or other sources of fine-grained sediment.
Q10. Which of the following is a characteristic of groundwater?
a. A thin base and a wide top
b. A crescent shape
c. A mound or ridge of sand
d. Water stored underground in soil and rock formations
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Correct Answer: d. Water stored underground in soil and rock formations
Explanation: Groundwater is characterized by its storage underground in soil and rock formations, filling the spaces between particles and fractures in the subsurface.
Q11. Which of the following is a type of sand dune?
a. Barkhan
b. Mushroom rock
c. Loess
d. Groundwater
Show Answer
Correct Answer: a. Barkhan
Explanation: A barkhan is a type of sand dune, characterized by its crescent shape and formed by the action of wind in desert regions.
Q12. Which of the following is a type of rock formation?
a. Barkhan
b. Mushroom rock
c. Loess
d. Groundwater
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Correct Answer: b. Mushroom rock
Explanation: A mushroom rock is a type of rock formation with a thin base and a wide top, formed by the differential erosion of softer rock layers beneath harder rock layers.
Q13. Which of the following is a type of windblown sediment?
a. Barkhan
b. Mushroom rock
c. Loess
d. Groundwater
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Correct Answer: c. Loess
Explanation: Loess is a type of windblown sediment, typically found in areas adjacent to deserts or other sources of fine-grained sediment.
Q14. Which of the following is a type of water stored underground?
a. Barkhan
b. Mushroom rock
c. Loess
d. Groundwater
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Correct Answer: d. Groundwater
Explanation: Groundwater is water that is stored underground in soil and rock formations, filling the spaces between particles and fractures in the subsurface.
Q15. What is the main factor that causes the formation of mushroom rocks?
a. Wind erosion
b. Water erosion
c. Differential erosion of rock layers
d. Deposition of windblown sediment
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Correct Answer: c. Differential erosion of rock layers
Explanation: Mushroom rocks are formed by the differential erosion of softer rock layers beneath harder rock layers, resulting in a thin base and a wide top.
Q16. What is the main factor that causes the formation of barkhans?
a. Wind erosion
b. Water erosion
c. Differential erosion of rock layers
d. Deposition of windblown sediment
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Correct Answer: a. Wind erosion
Explanation: Barkhans are formed by the action of wind in desert regions, resulting in a crescent-shaped sand dune.
Q17. What is the main factor that causes the formation of loess?
a. Wind erosion
b. Water erosion
c. Differential erosion of rock layers
d. Deposition of windblown sediment
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Correct Answer: d. Deposition of windblown sediment
Explanation: Loess is formed by the deposition of windblown sediment, typically found in areas adjacent to deserts or other sources of fine-grained sediment.
Q18. What is the main factor that causes the formation of groundwater?
a. Wind erosion
b. Water erosion
c. Infiltration of water into the ground
d. Deposition of windblown sediment
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Correct Answer: c. Infiltration of water into the ground
Explanation: Groundwater is formed by the infiltration of water into the ground, where it is stored in soil and rock formations, filling the spaces between particles and fractures in the subsurface.
Q19. Which of the following is a type of sand dune formed by the action of wind in coastal regions?
a. Barkhan
b. Parabolic dune
c. Loess
d. Groundwater
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Correct Answer: b. Parabolic dune
Explanation: Parabolic dunes are a type of sand dune formed by the action of wind in coastal regions, characterized by their U-shape and vegetation that helps to stabilize the dune.
Q20. Which of the following is a type of sand dune formed by the action of wind in desert regions with limited sand supply?
a. Barkhan
b. Parabolic dune
c. Transverse dune
d. Longitudinal dune
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Correct Answer: d. Longitudinal dune
Explanation: Longitudinal dunes are a type of sand dune formed by the action of wind in desert regions with limited sand supply, characterized by their elongated shape and parallel alignment to the prevailing wind direction.