GMAT Verbal Reasoning Practice Test 3

Question : 79 of 100

Marks: +1, -0

The study did not measure the quantity of pollutants emitted into the surrounding air by the aluminum refinery.
The neighboring landholders have made no change in the way they take care of their plants.
Air pollution from the refinery has changed the chemical balance in the plants’ environment, allowing the harmful insects and fungi to thrive.
Pollutants that are invisible and odorless are emitted into the surrounding air by the refinery.
The various species of insects and fungi mentioned in the study have been occasionally found in the locality during the past hundred years.

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