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प्रश्न
A: Freeze and thaw weathering is common in desert areas.
R: Water gets into cracks and breaks the rocks.
पर्याय
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.
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उत्तर
Both A and R are correct but R is not the correct explanation of A.
Explanation:
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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.
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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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संबंधित प्रश्न
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.
Identify the correct group:
Draw a neat and labelled diagram of Freeze and thaw weathering
Draw a neat and labelled diagram of Block disintegration.
In which regions will freeze-thaw weathering not be effective?
Besides climatic factors, rock type, and structure, can you think of some more factors that affect weathering?
Can animals and plants also influence weathering? Will that be physical or chemical weathering? Which type of weathering does stone quarrying cause?
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:
- Fast
- Slow
- Dry
- Wet
- Creep
- Slide
- Fall
- Flow
Question:
- What will happen when the weather conditions are dry?
- When will a flow occur?
- When will a creep occur?
- 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?
