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    Question

    Consider the following statements Statement I:

    Clay layers are poor aquifers. Statement II: The inter-particle space of clay minerals is the least. Select the correct answer using the codes given below: 
    A Both the statements are individually true and Statement II is the correct explanation of Statement I Correct Answer Incorrect Answer
    B Both the statements are individually true but Statement II is not the correct explanation of Statement I Correct Answer Incorrect Answer
    C Statement I is true but Statement II is false Correct Answer Incorrect Answer
    D Statement I is false but Statement II is true Correct Answer Incorrect Answer

    Solution

    An aquifer is an underground layer of water bearing rock. Water bearing rocks are permeable i.e., they have opening that liquids and gases can pass through. But clay layers are poor aquifers. Clay minerals are dense, impermeable material and act as an 'aquiteral' i.e., a layer of material that is almost impenetrable to water. Through groundwater might more through such material it will do so reny slowly. 

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