calculate the population doubling time of seven continents of the world (australia is included oceanina) based in their population growth ratw using formula population growth=70/population growth rate​

Whether or not a given study has the possibility of causing harm to participants:

How can the judiciary balance individual rights with the common good?

Atraffic cop has pulled over a speeder, only to discover that he has stopped a close friend. the police officer is torn, because his professional obligations demand that he punish the speeder, but his personal obligations suggest that he should give a friend a break. what is this called?