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प्रश्न
Which one of the following materials is affected by hydration process?
पर्याय
Granite
Clay
Quartz
Salts
उत्तर
Salts
APPEARS IN
संबंधित प्रश्न
Write whether the statement are true or false. Correct the incorrect one.
The breaking down of rocks into smaller particles is called weathering.
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.
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 |
Distinguish between the following pair:
Weathering and erosion
Give geographical reason:
Temperature changes result in physical weathering.
Give geographical reason:
Gases in the atmosphere affect weathering.
Give geographical reason:
Human activities affect weathering.
Which is the most important effect of weathering?
What is known as exfoliation? Name the processes involved in it?
What is known as oxidation?
Give one example of rapid mass movement.
What is known as Sheet Wash?
Give a technical term for the following:
Peeling off of the outer layer of rock through contraction and expansion.
Say whether the following is ‘True’ or ‘False’.
External forces are engaged only in erosion
Describe the chief characteristics of weathering in different climates.
What is humus? How is it formed? What is its significance in soil formation?
What do you understand by the following term:|
Exfoliation
What do you understand by the following term:|
Oxidation
What do you understand by the following term:|
Carbonation
What do you understand by the following term:|
Humus
Distinguish between the following :
Erosion and Weathering.
What do you understand by the following term:
Landslide
What do you understand by the following term:
Soil texture
Describe the work of plants as agents of weathering.
Give a geographical reason:
Slope is a major factor in mass wasting.
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?
On the basis of the given points, differentiate between weathering and erosion.
| Weathering | Erosion | |
| Definition | ||
| Causes/Agents | ||
| Effect/Results | ||
| Examples |
It is weathering that is responsible for bio-diversity on the earth. How?
Is weathering essential as a pre-requisite in the formation of soils? Why?
