Question

    Read each sentence to find out whether there is any grammatical error in it. The error, if any, will be in one part of the sentence. Mark the part with the error as your answer. If there is no error, mark ‘No error’ as your answer (Ignore the errors of punctuation, if any).

    The internal, or geothermal, (1)/heat from within the

    Earth are (2)/ responsible for the fact that (3)/temperature increases with depth (4).
    A 1 Correct Answer Incorrect Answer
    B 2 Correct Answer Incorrect Answer
    C 3 Correct Answer Incorrect Answer
    D 4 Correct Answer Incorrect Answer
    E No error Correct Answer Incorrect Answer

    Solution

    When two or more singular nouns or pronouns are connected by "or" or "nor," use a singular verb. So here, ‘are’ should be changed to ‘is’. The internal, or geothermal, heat from within the Earth is responsible for the fact that temperature increases with depth.

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