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    Question

    Fill in the blanks with the words that best fit the meaning of the sentence as a whole. 

     It has been known for years that ______ of natural

    gases can be _________ for health. 
    A consumption …... injurious Correct Answer Incorrect Answer
    B wastage ….... worse Correct Answer Incorrect Answer
    C usage ….... contagious Correct Answer Incorrect Answer
    D consuming ….... dangerous Correct Answer Incorrect Answer
    E burning ….... harmful Correct Answer Incorrect Answer

    Solution

    with injurious, we use TO, hence option 1 is incorrect. with WORSE we use comparison, hence THAN should be used. CONTAGIOUS means which can spread, it is not fitting the context. Natural gases are not consumed, so 4th option is incorrect as per context. Also, the form of this word is wrong. we don't say consuming OF something, instead CONSUMPTION of something. With CONSUMING we dont use OF  It has been known for years that burning of natural gases can be harmful for health.   

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