Answer: Activation-synthesis hypothesis.
Explanation: Activation-synthesis hypothesis is proposed by John Allan Hobson and Robert McCarley. It is the theory of dreaming that explains that dreams are a result of biological processes. In other words it is a neurobiological theory of dreams. Activation-synthesis hypothesis theory explains that dreams are created by changes in neuron activity that activates the brainstem during rapid eye movement sleep.
If you are relatively better at something, then you are said to have a absolute advantage in that activity.
<h3>What is
absolute advantage?</h3>
Absolute advantage serves as an economic concept which is been used to describe a party's superiority as regards the production capability.
It should be noted that this is the ability to produce a certain good or service at lower cost , hence If you are relatively better at something, then you are said to have a absolute advantage in that activity.
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C. Shang rulers expanded their kingdom by land purchases.
Answer:
Railroads
Explanation:
The western side of America is known to be as the region of Great Plains. The area with mountains and desert led the region to be famously known for Indians, cowboys, outlaws, prospectors, and covered wagons on trails. With no river system and roads to connect with the other side of America, railways became major transportation in supplying crops.