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Subjects

Geography

Weathering: physical, chemical, and biological

In Class 11 Geography, this topic from the chapter “Geomorphic Processes” explains weathering as the breakdown and alteration of rocks at or near Earth’s surface without transporting the material. Students learn how physical weathering acts through temperature changes, pressure release, and frost; how chemical weathering involves processes such as solution, carbonation, oxidation, hydration, and hydrolysis; and how plants, animals, and microorganisms drive biological weathering. The topic also connects climate, rock type, relief, and time with soil formation and landscape development.

Hard · Level 6 · 25 questions

Practice questions

01In which process can minerals absorb water, expand, and create stress in rock?

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02How does burrowing by soil organisms increase weathering?

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03Why can different rocks weather at different rates under the same climate?

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04What is the effect of increasing surface area in weathering?

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05Which statement correctly relates mass movement and weathering?

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06Which atmospheric component is important for carbonation?

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07Under which condition will frost weathering remain weak?

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08What can be the effect of acid rain on chemical weathering?

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09Why is salt weathering common in coastal rocks?

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10Which option correctly groups chemical weathering processes?

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11Why can weathering differ between exposed rock on a slope and the same rock covered by soil?

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12What is the correct difference between regolith and bedrock?

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13If weathering extends to great depth in an area, which combination is most likely behind it?

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14Which option correctly shows the chemical side of biological weathering?

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15Which statement correctly states a limitation of thermal weathering?

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16Under what condition can rock permeability increase chemical weathering?

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17What is the correct meaning of the time factor in weathering?

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18In which example is chemical weathering most likely to increase after physical breakage?

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19Which option gives a correct result of weathering?

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20Which statement best explains the complexity of biological weathering?

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21If a rock contains more soluble minerals, which type of weathering is more likely to increase?

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22If weathered cover is continuously removed from an area, what may happen to deep chemical weathering?

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23Which indicator is most useful for identifying oxidation weathering?

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24Which option is a correct example of physical weathering?

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25Why would it be wrong to consider only one factor while assessing weathering rate?

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