They opposed it because of the high casualty rate.
According to Piaget's term, the earliest stage of moral development is a broad form of moral thinking he calls heteronomous morality.
The Awnser Is C Because Thats How They Get stuff through trade.
Assuming that this is referring to the same list of options that was posted before with this question, the correct response would be through a "mutual understanding," since this was the purpose of the Berlin Conference.
The formula for finding density is p = m/v.