Answer to Dictation 1
Breathing in air pollution could change our brain.
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Answer to Dictation 2
A new study shows that car fumes can change how our brain is wired.
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Answer to Dictation 3
Car fumes can change our brain's connectivity in just two hours.
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Answer to Dictation 4
Scientists thought the brain may be protected from the harmful effects.
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Answer to Dictation 5
Fresh evidence supporting a connection between air pollution and thinking.
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Answer to Dictation 6
The research team took brain scans of the adults for two hours.
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Answer to Dictation 7
Networks in the brain that we use for thinking and remembering changed.
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Answer to Dictation 8
There needed to be more research to see how car fumes change our brain.
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Answer to Dictation 9
They also advised people to close car windows when in traffic.
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Answer to Dictation 10
The brains of the 25 people returned to normal after they breathed clean air.
See the car fumes lesson for the whole text.
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