I think no they are not gay
ok here the answers
Q1: No not necessarly Lesibians
Q2: The earth will have more germs and viruses and diseases and therer will be no balance.
Q3: Participation of women in competitive sport will not make her better or superior to man, and for sure a confident woman do not need to show her confidence in sports, she can show it in work place by doing her job efficiently and raising her children in the best way.
Q4: The culture has never been a barrier for success in studies fields.