Ray. It has an endpoint and the other goes on forever in a line
Answer: True
Central America has had difficulty in finding a good political and economic balance following centuries of domination by European nations because the people of Central America were not united. Corruption had been one of the main obstacles to development in Central America and the inability of the government to eradicate corruption resulted in political and economic instability.
Las Vegas is situated 115 degrees West.
So the separation is 180 - 115 = 65 degrees.
Answer:
The required efficiency of BOD5 removal of the plant needs to be at least 91%
Explanation:
Even though a WWTP (Waste water treatment plant) has several unit operations, it needs to have an overall treatment efficiency. In this case, it is only required to know how much BOD5 do we need to lower by removing organic matter from the water. It goes as following:

This will work for any efficiency, for any parameter you need to define. They need to be in the same concentration unit, of course.
Replacing known values, we have:

Which we will approximate to 91%, because decimal percentages do not say anything and are not currently used.
Answer:
Manifest Destiny as a concept was exercised in 1492 by Christopher Columbus and the Spanish monarchs who initially sanctioned the colonization of South America.