Which of the following was not a building technology the river valley civilization

answer: there were new carvings etched into the back of the sculpture and each shoulder was turned into a symbol of the birdman.

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.