Maybe because of the different cultures and art tendencies that had to have varied in different regions of Greece?
You can find the information from this link:
http://discovermagazine.com/2013/dec/22-20-things-you-didnt-know-aboutneanderthals
B. Fulton's Steam Engine
Explanation:
I believe it is B because there were steamboats and steam powered trains as a result.
In the Manifest Destiny, the Louisiana Purchase treaty is an important document because it shows the extent to which the United States was claiming land westward. The Louisiana Purchase Treaty happened on April 30, 1803. The correct answer is D.
Calorie
(Calorie most specifically means the amount of energy needed to raise one gram of water by one degree celsius.)
*But in the context of nutrition, we use calorie to describe how much energy a food contains and can transfer to the body. For example, a banana has about 105 calories. The average human adult needs about 1800-2000 calories per day depending on size and activity level.