Answer:
Rivers were crucial to the survival of early civilizations because they were responsible for providing a source of water, irrigation for good farmland and a way for people to trade with other people through water transportation. Many of the earliest civilizations thrived due to the availability of rivers such as Mesopotamian cultures with the Euphrates River and Tigris River, Egyptians with the Nil
Explanation:
I believe the answer is: <span>people take unnecessary risks when they are more afraid of being called cowards than of behind injured.
This perception come from people's need to maintain their value/position at the social group. Often time, this perception is actually not true because most of the time people could if other people choose to step back and re-think their approach for a problem</span>
An externality associated with a market can produce negative costs and positive benefits, both in production and consumption.
Answer: perception of emotion.
Perception of emotion <span>refers to the ability of recognizing and identifying
</span>emotions <span>in other people. </span>Emotions can be perceived through visual, auditory, olfactory, auditory sensory processes. They are usually viewed as having three components: a subjective experience (of the person having the perception), physical changes on the person and cognitive appraisal.