Answer:
Although it wasn't nearly as quick as trains when they were invented ,the pony express took a shorter time to mail letters than ships,which would often take many months,but anyways the main reason it was fast was because at a certain point the first mailman could stop to take a rest while another would step in and go further and this would go on,and since horses have been known to be fast it was rather easier to travel.
Explanation:
In microeconomic theory, the opportunity cost, or alternative cost, of making a particular choice is the value of the most valuable choice out of those that were not taken. ... Opportunity cost is a key concept in economics, and has been described as expressing "the basic relationship between scarcity and choice".
Explanation:
In social networks it is common to use a different language, this happens so that one does not need to type very large texts and so that the message is understood, but it does not need to be necessarily clear about the message.
The great advantage of this is the speed with which the messages can spread, but on the contrary when their real meaning cannot be understood this causes mistakes and problems with the interpretation of the message.
Answer:
Answer: The correct answer is c)"Self-regulation is difficult for teenagers, who often overlook the potential consequences of risky behaviors."
Explanation:
Adolescent development requires in a huge way of self-regulation due to the fact that this can influence different social aspects in the life of an adolescent such as family, school and friends. It was common that to study self-regulation in adolescents, only the familiar environment was analyzed; but now it is known that all aspects in life influence the way in which a young person can control himself according to a lot of different facts around him in the social context. It has also been noticed that there is a bidirectional relationship between adolescent self-regulation and relationship environment, it means one goes with the hand of the other.
Two ways they adapted to the Ice Age is of course becoming caveman in order to stay warm, but also they became nomads where they always followed the food and never stayed in one place for a long time. Hope this helps
