Jon- Your description of air and your definition of mixtures are good. However, we were asked why we believe that air is a mixture. In other words, we were asked for evidence. The sort of facts you cite were not discovered by reading textbooks but by doing real experiments.
Ingroup bias, sometimes known as in-group favoritism, in-groupâout-group bias or intergroup bias, refers to a pattern of favoring members of oneâs in-group over out-group members.This can be expressed in evaluation of others, allocation of resources and many other ways.ngroup bias, sometimes known as in-group favoritism, in-groupâout-group bias or intergroup bias, refers to a pattern of favoring members of oneâs in-group over out-group members.
Bias is a just one view point. It is the point of view of or in  another words the inclination of a person, group, organisation or  thing but not the only possible one. â¦  Bias is uneven, unlevelled or unbalanced.   Bias is very often controversial but not always.  The meaning of bias is prejudice that is against or in favor of a  person, thing or group compared with another in a way considered to  be unfair. 5 people found this useful. Notyouraveragedummy ...