Noise from human sources like traffic or mining can affect animals exposed to it for long periods. A recent analysis of more than 100 studies about these effects found that exposure to this noise had significant effects on all the animals examined in the studies. On average, the studies showed greater effects for mammals than for birds, but that doesn’t mean that because, for example, European robins are birds, they won’t be as severely affected by noise as any given mammals, such as humpback whales. It is important to look at the data for each species because
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Verbal·Information and Ideas·Inferences
mediumWhich choice most logically completes the text?
A
the effects of noise on birds are typically much stronger than they are on mammals.
B
the effects of noise on birds have been studied significantly more than the effects of noise on mammals have.
C
the studies of mammals and the studies of birds were conducted using very similar kinds of noise.
D
the effects of noise on some species of birds could be much stronger than the effects on some species of mammals.