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

 
4.
 
Active 
+ 
involvement, life, member, part, participant, participation, role, support 
5.
 
Adequate 
+ 
income,  information,  preparation,  protection,  supply,  support,  time, 
training
 
6.
 
Adverse 
+ 
circumstance, consequence, effect, event, impact, reaction, weather
 
7.
 
Aggressive 
+ 
action, approach, behaviour, campaign, child, expansion, growth, stance, 
tendency
 
8.
 
Alternative
 
+ 
approach,  arrangement,  energy,  explanation,  lifestyle,  manner,  method, 
route, scorn, solution, suggestion, therapy, treatment, view, voice
 
9.
 
Ample 
+ 
evidence, justification, room, scope, space, supply, time
 
10.