Which are thought to have contributed to the decline of the indus valley civilization? select all correct answers. a) the indus river and its tributaries changed course. b) major sandstorms blanketed the cities, forcing people to leave. c) the soil became too salty for crops to grow. d) cities were destroyed by raging fires. e) people moved to more fertile regions of the subcontinent.

The answers are C and E.

c) The soil became too salty for crops to grow;

e) People moved to more fertile regions of the subcontinent.

Explanation:

The Indus River Valley civilization (3300-1300 BCE) used to use salt water on their agricultural system. So, as the times passes the salt overloaded the soil making it inappropriate to grow anything; thus forcing the civilization to move to more fertile regions in order to have more stable and abundant crops.

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.