I would explain, but since you had the mind to post numerous questions, I only have time to give you the answers. Sorry about that.
1. C
2. C
3. C
4. D
5. A
<span>6. B</span>
All of the ancient civilizations were close to a major water source.
All of them practiced agriculture in order to provide enough food for their civilization.
All of them had some sort of irrigaiton in place in order to water down he fields.
All of them lived in socially stratified societies where a ruler was present.
It's the second one; production of consumer goods increased.
Answer:
d. Individuals may post private identifiable information about themselves on-line without intending it to be public and available to researchers.
Explanation:
To complete this exercise, you have to choose the correct option that answers what are the potential risks of harm to subjects to internet-based research.
Correct answer is "d" because many individuals post private information about themselves online but they may not know that information is public and that researchers can use this information. Not everyone is aware of that and that is dangerous for the subjects.