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प्रश्न
Is weathering essential as a pre-requisite in the formation of soils? Why?
उत्तर
Yes, weathering is an essential pre-requisite in the formation of soils. Weathering is action of elements of weather and climate over earth materials. There are a number of processes within weathering which act either individually or together to affect the earth materials in order to reduce them to fragmental state. Weathering is mechanical disintegration and chemical decomposition of rocks through the actions of various elements of weather and climate.
Weathering is an important process in the formation of soils. When rocks undergo weathering, rocks start to break up and take form of soil gradually.
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संबंधित प्रश्न
Match the column
| Column A | Column B |
| 1. Granular disintegration | (i) causes feldspar to become a powdery mass |
| 2. Oxidation | (ii) is common in deserts |
| 3. Carbonation | (iii) is the simplest form of chemical weathering |
| 4. Hydration | (iv) mainly affects limestone regions |
| 5. Solution | (v) results in the rusting of iron |
List any three factors that affect weathering.
Which is the most important effect of weathering?
Make a chart for your classroom showing the causes of different types of weathering.
What is known as oxidation?
Give a technical term for the following:
Disintegration or decomposition of rock.
Give a technical term for the following:
Peeling off of the outer layer of rock through contraction and expansion.
Give a technical term for the following:
Expansion of minerals in rocks on coming into contact with rainwater.
Describe the chief characteristics of weathering in different climates.
What is weathering?
On what factors does the weathering depend?
Distinguish between the following:
Sheet erosion and gully erosion.
What do you understand by the following term:|
Regolith
What do you understand by the following term:|
Oxidation
What are different types of soil according to their texture?
How are the different kinds of soils in Temperate zones formed?
What are the various factors governing the formation of soil? Which one is the most important and why?
What do you understand by the following term:
Soil profile
Account for the two types of weathering.
Describe how changes of temperature lead to weathering.
OR
How do changing temperature lead to weathering?
Describe the work of plants as agents of weathering.
State the effects of weathering.
Give reasons for the following :
Farmers are encouraged to adopt soil conservation methods.
Give a geographical reason:
Effect of mass movement will be greater along the western slope of the Sahyadri's than the eastern slope.
A region is having an annual mean temperature of 5°C and an annual rainfall of 1000 mm. Can you comment upon the weathering and the type with the help of the following questions? Discuss in class.
- Which type of weathering will be dominant here?
- Where will such a region be found?
Consider the given statement and choose the right option given below.
- Small streams that join the main river is tributary.
- River Gangas is a tributary.
Which of the above statement is/are the right statement.
Are physical and chemical weathering processes independent of each other? If not, why? Explain with examples.
