Please select a subject first
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How is carbon dioxide a useful gas for life on earth?
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What are the elements that determine weather and climate?
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How is weather different from climate?
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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.
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Soil formation is an important benefit of weathering. How is it important for mankind?
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People have used various farming methods to increase food production. However, in the process, they have stripped the soil of nutrients, leading to its degradation.
Can you suggest some ways by which we can reduce soil degradation?
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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 |
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Distinguish between the following pair:
Weathering and erosion
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Discuss the importance of cottage industry for a country which has a large population with little education.
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What, according to you, would be the future of industries if we destroyed our forests and wildlife?
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State whether the following is true or false.
Industries do not contribute much to national income.
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State whether the following is true or false.
The number of labour employed has no relation to the size of an industry.
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Distinguish between the following pair
Granular disintegration and exfoliation
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Give geographical reason:
Temperature changes result in physical weathering.
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Give geographical reason:
Gases in the atmosphere affect weathering.
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Give geographical reason:
Human activities affect weathering.
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List any three factors that affect weathering.
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In which regions of the world is ‘frost action’ the common form of weathering?
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Which is the most important effect of weathering?
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