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प्रश्न
What do you understand by the following term:|
Exfoliation
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उत्तर १
It is the process of scaling off the curved outer shells of the rock. Exfoliated dome-shaped rocks are largely found in great deserts.
उत्तर २
When the rock consists of homogeneous minerals the thin surface layer of rock absorbs heat during the day and expands, while during the night, this surface layer contracts. In a few days the rock breaks up or peels off into layers. This type of weathering is called exfoliation.
संबंधित प्रश्न
Complete the flowchart below.
From encyclopedias and the Internet, find out the different types of soil found in India. Discuss the importance of these soils for crops cultivated in our country. You should form groups in class for this activity.
Give a technical term for the following:
Expansion of minerals in rocks on coming into contact with rainwater.
State and explain the classification of mass movements.
On what factors does the weathering depend?
How is humus formed?
What do you understand by the following term:
Soil profile
Account for the two types of weathering.
Are physical and chemical weathering processes independent of each other? If not, why? Explain with examples.
Name three types of weathering.
