Topic 1: Increasing travels between countries enable people to learn different cultures or to increase tension between people from different countries

Condition 
+ 
adverse,  critical,  economic,  environmental,  excellent,  extreme, 
favourable,  good,  harsh,  living,  medical,  mental,  necessary,  normal, 
physical, poor, social, working 
29.
 
Contact 
+ 
close, daily, direct, frequent, initial, personal, physical, regular, social
 
30.
 
Context 
+ 
broad, cultural, different, general, historical, particular, political, present, 
social, specific, wide
 
31.
 
Country 
+ 
developed, developing, different, foreign, industrial, poor, rich, western
 
32.
 
Cost 
+ 
additional, administrative, environmental, extra, high, legal, low, rising, 
running, social, total
 
33.