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TOEFL
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Listening practice
/ Section RHZK
Listen to an Academic Talk
Listen to part of a talk in an environmental science class.
Listen
27. Why does the speaker mention a moderate wind?
A
To explain why the surface cools in autumn
B
To show that only a small force is needed once layering ends
C
To describe how nutrients reach the lake from outside
D
To argue that shallow lakes mix more often