21). Which of the following statements is/are not true? A. Chemical weathering is most common in limestone rocks B. Chemical weathering is most active I wet regions with higher temperature C. Rain action is a form of chemical weathering D. Exfoliation is a process of chemical weathering
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22). A V-shaped valley is a feature produced by :
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23). Residual hill in the desert region is known as :
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24). Although hot deserts have a very low annual rainfall, occasional heavy rain storms do occur and these sometimes produce steep-sided, flat-floored valleys called :
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25). Match the following :
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26). A weathering process in which layers of rocks peel off as expansion alternates with contraction, is known as :
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27). 27. Whine one of the following statements is correct? Chemical weathering includes
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28). Which one of the following plate movements is responsible for the formation of mid-ocean ridge?
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29). Consider the following geological phenomena: 1. Development of fault 2. Movement along a fault 3. Impact produced by a volcanic eruption 4. Folding of rocks Which of the above cause earthquakes?
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30). A valley with steep, parallel walls along the faultlines, formed by the subsidence of a part of earth's crust is known as :
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