The following passage has not been edited. There is an error in each line against which a blank has been given. Write the incorrect word and the correction in your answer-sheet against the correct blank number as given in the example. Remember to underline the word that you have supplied.

Error correction
(a) who which (which refers to things whereas who refers to a person)
(b) the (the is used to refer a particular object where an is used for countable objects)
(c) to by (by removing – to removing by is used to refer the particular action)
(d) in out (trees give out oxygen tress takes in CO2)
Couldn't generate an explanation.
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