Carpool lanes and bus lanes on freeways are marked with double, parallel solid lines, with in the middle.

the correct answer is individualism and exchange. at this stage, children begin to question the rules, because they can see that there is more than one side to them. different individuals have different viewpoints. they won't be able to reach this stage because of ignorance, a lack of ethics or personal biases. that is because people with that characteristiscs are not able to distinguish what is good or what is bad and they can't pursue their individual interests.

fertile good for trade etc

could you go a bit more in depth with you question? it's quite hard to understand. as soon as you do that i will be glad to : )

answer; correlational;