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.
A test is considered biased when the scores of one group are significantly different and have higher predictive validity, which is the extent to which a score on an assessment predicts future performance, than another group. Most test biases are considered cultural bias.Cultural bias is the extent to which a test offends or penalizes some students based on their ethnicity, gender or socioeconomic status. test is considered biased when the scores of one group are significantly different and have higher predictive validity, which is the extent to which a score on an assessment predicts future performance, than another group. Most test biases are considered cultural bias.