Select the most appropriate option for blank No 1 ........

English Language (CHSL) Fill in the blanks

In the following passage some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each blank.
Comprehension:
Rivers around the world are (1) ______ with dangerous levels of antibiotics, (2) ______ to a recent study. Concentration of antibiotics in some waterways (3) ______ safety levels by 300 times. Researchers looked at several (4) ______ used antibiotics in rivers flowing (5) ______ 72 countries.

Select the most appropriate option for blank No. 1

infected

contaminated

fouled

tainted

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Explanation:

To find the correct answer for the blank no.1, we need to take a look at the sentence and then the meaning of the words given in options.

Now the sentence states: Rivers around the world are (1) ______ with dangerous levels of antibiotics,

The meaning of words given as options:

infected - contaminated with harmful organisms.

fouled - make foul or dirty; pollute.

contaminated - having been made impure by exposure to or addition of a poisonous or polluting substance.

tainted - become contaminated or polluted.

So it is clear that the all the words are related to pollution or contamination. Hence option 2 is contaminated is the correct answer as it is the most suitable word for the completion of the sentence.