Directions: In the following sentence, 4 words are given in bold. Two or more of these words are incorrectly placed and need to be interchanged. A new report convalescing (A) the damage wreaked (B) by an oil disaster in Assam’s Baghjan village stated that gauging (C) even 70-80% of the desecrated (D) ecosystems would take at least a decade.

The correct answer is CBAD Key Points From the context of the sentence, we can see that it is talking about a report on the oil-related catastrophe that happened in Assam and the effect it had on the ecosystems. Let's look at the meaning of the words: Word Meaning Gauging judging or assessing (a situation, attitude, or feeling) Wreaked caused (a large amount of damage or harm) Convalescing recovering health and strength over a period of time after an illness or operation Desecrated violated Now let's assume that the emboldened words in the sentence are replaced by blanks: A new report _________the damage ________by an oil disaster in Assam’s Baghjan village stated that _________even 70-80% of the __________ecosystems would take at least a decade. All the blanks require a verb , but the tense and the implication of the action matters here. The first blank must refer to an action that can be carried out by a report i.e. an inanimate object. ' Convalesce ' refers to the act of healing , thus it is something that a report cannot do or is not made with the objective of doing. The third blank must represent an action that can be carried out by the 'ecosystems' in Assam. ' Gauging ' means to assess something or understand the intensity of it, and this is not something that is usually associated with an 'ecosystem' and is not something that would usually take 10 years i.e. a decade. Hence, the terms ' gauging ' and ' convalescing ' need to be interchanged in order to make the sentence contextually and grammatically correct. The correct sentence will be: A new report gauging the damage wreaked by an oil disaster in Assam’s Baghjan village stated that convalescing even 70-80% of the desecrated ecosystems would take at least a decade.