Parts of the following sentence have been given as options. Select the option that contains an error.
According to the encyclopaedia, a oasis is an area which is made fertile by a source of freshwater.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. a oasis is an area.
The article "a" is used before words that begin with a consonant sound (e.g., "a book," "a cat").
The article "an" is used before words that begin with a vowel sound (e.g., "an apple," "an hour").
The word "oasis" begins with a vowel sound (the "o" sound), so the correct article is "an", not "a."
Hence, the correct sentence is:- According to the encyclopedia, an oasis is an area which is made fertile by a source of freshwater.