Listening sample 9: Answer Key Listening Sample 9

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Listening sample 9:
 Answer Key
Listening 
Sample 9
: Answer Key 
21 cigar 
22 
13 (different) countries 
23 (is) 
activated 
24 
(average) (around/about/approximately) 50 kilometres/kilometers 
25 
(water/ocean/sea) temperature /
change(s) in temperature /
(water/ocean/sea) temperature change(s) /
temperature of water/ocean/sea 
26 A 
27 C 
28 A 
29 B 
30 C