Without <span>keeping their sources confidential, many of potential informants will be discouraged from giving the information. The most important information came from someone that worked deep inside the incidents and decided to act out as a whistleblower. If the information about these informants is exposed, Their life could be in danger.</span>
Answer: The development of agriculture enabled the rise of the first civilizations, located primarily along river valleys; these complex societies were influenced by geographic conditions, and shared a number of defining political, social, and economic characteristics.
