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    Question

    In each of the questions given below, four words are

    given in bold. These four words may or may not be in their correct position. The sentence is then followed by options with the correct combination of words that should replace each other in order to make the sentence grammatically and contextually correct. Find the correct combination of words that replace each other. Biogas, derived from organic alternative (A) through anaerobic digestion, represents a sustainable (B) and renewable energy source, providing an eco-friendly waste (C) to traditional fossil fuels and contributing to waste management efforts (D).
    A A-B Correct Answer Incorrect Answer
    B A-C, B-D Correct Answer Incorrect Answer
    C B-C Correct Answer Incorrect Answer
    D A-C Correct Answer Incorrect Answer
    E A-D, B-C Correct Answer Incorrect Answer

    Solution

    The corrected sentence would be: "Biogas, derived from organic waste through anaerobic digestion, represents a sustainable and renewable energy source, providing an eco-friendly alternative to traditional fossil fuels and contributing to waste management efforts."

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