Answer:
B
Explanation:
The Quaternary sector is the part of the economy that is also sometimes described as the knowledge economy because it includes education activity.
Quaternary sector activity is measures, for example, by the presence and influence of higher education centers, foreign exchange students, research and investigation labs, think tanks, and innovation and entrepreneurship present in an economy.
Advanced technology is also an important aspect of the Quaternary sector that has only grown more important with time.
The answer is, C. nitrogen and oxygen. 78℅ of nitrogen and about 21℅ of oxygen domain most of the dry air.
Answer:
D.
Explanation:
The Great Lakes and Mississippi River were and are important routes of trade and transportation in the Midwest.
When the Industrial Revolution hit America, the Great Lakes and Mississippi River both played important roles in industry, trade, and transportation. Each of the Great Lakes provided some sort of benefit during the Industrial Revolution, such as the mining production and sources of raw materials from Lake Superior, trade with indigenous people from Lake Michigan, timber logging from Huron, and heavy industrialization from Erie <em>(Burnell, 2018, pg. 3)</em>.
The Mississippi River also had a tremendous impact. Not only did it provide the means of bulk transport from the Great Lakes to the 10 states it reached, but it also benefitted the industries along it as well.
Today, the Mississippi River is still a transportation source, but it also is being used for green hydroelectric power.
And, to quickly cap off the answer to this question, the Midwest was never a hub for business and finance, it was always an industrial hub.
<em>https://deepblue.lib.umich.edu/bitstream/handle/2027.42/144760/Burnell_Alison_IP_Thesis.pdf?isAllowed=y&sequence=1</em>
Answer:
C. 140 years
Explanation:
Undergoing decay to decrease by half.
