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TOEFL
/
Listening practice
/ Section LFG4
Listen to an Academic Talk
Listen to part of a talk in a climate science class.
Listen
29. What is the main point of the talk?
A
Ice cores are the only reliable record of past climate
B
Snowfall varies more than was once believed
C
Ice cores preserve real samples of past air but have limits of dating
D
Deep ice is easier to interpret than shallow ice