हिंदी

A: Freeze and thaw weathering is common in desert areas. R: Water gets into cracks and breaks the rocks.

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प्रश्न

A: Freeze and thaw weathering is common in desert areas.

R: Water gets into cracks and breaks the rocks.

विकल्प

  • Only A is correct

  • Only R is correct

  • Both A and R are correct and R is the correct explanation of A.

  • Both A and R are correct but R is not the correct explanation of A.

MCQ
अभिकथन और तर्क
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उत्तर

Both A and R are correct but R is not the correct explanation of A.

Explanation:

  • A is correct: 
    Freeze-thaw weathering can occur in desert areas, especially in regions with occasional freezing temperatures. Deserts are not entirely devoid of water; it can seep into cracks in rocks.
  • R is correct: 
    Water freezing in cracks expands, exerting pressure on the rock and causing it to break. This is the mechanism of freeze-thaw weathering. However, it’s important to note that this process doesn’t specifically define desert environments.
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Types of Weathering
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 2: Weathering and Mass Wasting - Exercise [पृष्ठ २६]

APPEARS IN

बालभारती Geography [English] Standard 11 Maharashtra State Board
अध्याय 2 Weathering and Mass Wasting
Exercise | Q 2) 3) | पृष्ठ २६

संबंधित प्रश्न

Assertion (A): In areas of high rainfall, slides are very common.

Reasoning (R): Types of mass wasting movements are dependent on a region's climate.


A: Gravity is a major factor in mass wasting.

R: Gravity pulls all things down to the earth’s surface.


Identify the correct correlation:

A: Assertion; R: Reasoning

A: Surface water helps solifluction. 
R: Water table is responsible for the same.


Draw a neat and labelled diagram of Freeze and thaw weathering


Draw a neat and labelled diagram of Biological weathering.


Answer in detail:

Explain with examples the process of weathering happening in Konkan.


In which regions will freeze-thaw weathering not be effective?


See the diagram and answer the following questions:

  1. Which rock layer has experienced the most weathering?
  2. Which rock layer has experienced the least weathering?
  3. What could be the reason behind the difference in weathering?

Study the following schematic diagram. It shows the relationship between the speed of material and moisture content. Read the index, and answer the following questions:

  1. Fast
  2. Slow
  3. Dry
  4. Wet
  1. Creep
  2. Slide
  3. Fall
  4. Flow

Question:

  1. What will happen when the weather conditions are dry?
  2. When will a flow occur?
  3. When will a creep occur?
  4. Now can you enumerate the factors which affect mass wasting?

Think of the reason why landslides should be more frequent in the foothill zone of the Himalayas and Western Ghat region. Why do landslides not occur in Marathwada in Maharashtra or the Maidan area in Karnataka?


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