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Which of the following are the features of a karst region? 
1. There is an absence of surface drainage 
2. The surface valleys are dry 
3. They have a broken landscape, occasionally broken by precipitous slopes 
Choose from the following options.
  • a)
    1 and 2 only
  • b)
    2 and 3 only
  • c)
    1 and 3 only
  • d)
    All of them
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Which of the following are the features of a karst region?1. There is ...
 
  • Characteristic Features of a Karst Region: Generally speaking, karst regions have a bleak landscape, occasionally broken by precipitous slopes. 
  •  
    There is a general absence of surface drainage as most of the surface water has gone underground. Streams rising on other rocks only flow over limestone for a short distance and then disappear underground.
  •  
    For the greater part of their course, they cut their way along the joints and fissures of the rock wearing out a system of underground channels. The surface valleys are therefore dry.
  •  
     When the water penetrates to the limestone base and meets non-porous rocks, it reemerges onto the surface as a spring or resurgence.
 
 
 
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Which of the following are the features of a karst region?1. There is ...
Features of a Karst Region:

Karst regions are unique landscapes characterized by distinctive features. The following are the features of a karst region:

1. Absence of surface drainage:

In a karst region, surface drainage is typically absent. Instead, water flows underground through a complex system of cracks, fissures and caves.

2. Dry surface valleys:

The valleys in a karst region are usually dry, with very little surface water. This is because the water that falls on the surface quickly percolates through the rocks and enters the underground drainage system.

3. Broken landscape:

Karst landscapes are characterized by a broken and irregular topography. The landscape is typically punctuated with sinkholes, dolines, and other surface depressions. The surface is also occasionally broken by precipitous slopes and cliffs.

4. Caves and underground drainage systems:

Karst regions are known for their extensive cave systems, which are formed by the dissolution of soluble rocks such as limestone and dolomite. These caves are often connected to a complex network of underground drainage systems, which can be very extensive.

Conclusion:

In conclusion, a karst region is a distinctive landscape characterized by an absence of surface drainage, dry surface valleys, a broken topography, and extensive cave and underground drainage systems.
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Which of the following are the features of a karst region?1. There is an absence of surface drainage2. The surface valleys are dry3. They have a broken landscape, occasionally broken by precipitous slopesChoose from the following options.a)1 and 2 onlyb)2 and 3 onlyc)1 and 3 onlyd)All of themCorrect answer is option 'D'. Can you explain this answer?
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