Weathering
Geography ⇒ Physical Geography
Weathering starts at 6 and continues till grade 12.
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See sample questions for grade 8
Describe the process of frost action in physical weathering.
Describe the role of water in chemical weathering.
Explain how animals contribute to weathering.
Explain how plants contribute to biological weathering.
Explain how weathering is important for agriculture.
Explain the difference between physical and chemical weathering.
Explain why granite is more resistant to weathering than limestone.
A rock in a cold region breaks apart after several cycles of freezing and thawing. Which type of weathering is this? (1) Chemical (2) Physical (3) Biological (4) None of these
A rock in a cold region breaks apart after several cycles of freezing and thawing. Which type of weathering is this? (1) Chemical (2) Physical (3) Biological (4) None of these
Which of the following best describes the process of exfoliation? (1) Breaking of rocks by plant roots (2) Peeling of outer rock layers due to temperature changes (3) Dissolving of rocks by acid rain (4) Rusting of iron in rocks
Which of the following is a direct effect of weathering on the landscape? (1) Formation of valleys (2) Formation of deltas (3) Formation of sand dunes (4) Formation of soil
Which of the following is a factor that increases the rate of weathering? (1) Low rainfall (2) High temperature (3) Absence of vegetation (4) Hardness of rocks
Fill in the blank: The breaking down of rocks without any change in their chemical composition is called __________ weathering.
Fill in the blank: The process by which rocks are broken down by living organisms is called __________ weathering.
Fill in the blank: The process by which water reacts with minerals in rocks to form new minerals is called __________.
Fill in the blank: The process of __________ involves the absorption of water by minerals, causing them to expand and weaken the rock.
True or False: Chemical weathering is more rapid in hot and humid climates.
True or False: Limestone is more easily weathered by chemical processes than granite.
True or False: Weathering and erosion are the same processes.
True or False: Weathering can help in the concentration of valuable minerals in the soil.
