Answer:
Scientific Model
Explanation:
A scientific model is a common term in scientific experimentation or research, which is used to describe a particular phenomenon or situation, by using something else to represent it, thus, it helps in understanding the concept in a easier way.
A scientific model are in various forms, such as visual model, mathematical models or computer models.
The purpose of scientific model is to make the actual thing, phenomenon or situation that is being modelled easier to understand. This helps in using the model to understand how and why a situation occurs, and predict what happens in future.
For example, using predictive models, to predicting or make weather forecast, that is what will happen as our climate changes would be easier to understand, if we could make a fully accurate model of the atmosphere.
A language becomes known by someone first starting it off, it then rubs off onto someone else from listening to the one person talking in that certain language. then eventually it spreads and parents speak that language around their children. Like a chain. An Asian language would spread so much people there is a large population of Asian people. Just like the other first language, it would spread quickly. Hope I Helped!
Preserving the nation of "the Republic of South Korea"; and stopping communist aggression at the 38th parallel.
Answer: social exchange theory
Explanation:
Social exchange theory state that in the relationships we form with others we will always try to weigh the benefits versus the cost of that particular relationship.
Every relationship is a two way which means it is not about one person constantly giving whilst the other one is constantly receiving.
The give and take though is not always equal in all relationships that we have which is what this theory states that we may look at whether we are benefiting from that relationship more than it cost us then we can choose to stay and continue with that association.
If the cost is higher than the benefits it may not worth it to keep associating with that relationship.
Relationships that are worth holding unto are those which have benefits that are higher than the cost those are positive relationships but negative ones cost us more than they benefit us.
First Settlers arrived in the Americas from Asia through the Bering Strait. At the time the climate was much colder than today, and it is suggested that either the straight was frozen over and people could walk or the sea was a lot more shallow then today, so people could cross the Strait with primitive boats.