It was popular because alot of immigrants went their
Harkhuf in his collection of memoirs portrays four undertakings into Nubia. In the first place, he composes that Pharaoh his ruler sent him together with his dad to Nubia to open the path to that nation and when he returned he brought many blessings from that point. He went a moment on numerous occasions returned with blessings, the third time he returned with three hundred conveying a ton of presents and in conclusion, was the letter from Pharaoh which affirmed that to be sure Harkhuf had been to Nubia and had carried with him a dwarf of the god's moves from Nubia.
Egypt, Libya, and Nigeria all supply oil and petroleum to the U.S.
That's why they are so important to the U.S. economy.
Answer: Oil
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A-B-A-B design could provide the most valid non intervention measure with demonstration of experimental control.
In statistics, the experimental design, also known as the design of experiment (DOE), is described as the layout of an information-gathering experiment in which a variation may or may not be present. Typically, controlled experiments use this phrase. In order to make the results more reliable, these tests minimize the impacts of the variable. In this design, a group of people, plants, animals, etc. may participate in an experimental unit's procedure.
Pre-experimental research designs are the most straightforward kind of experimental research designs in statistics. Following the identification of some factors as causes and effects, a group or groups are kept under observation in this method. Typically, this approach is used to determine whether the targeted group need additional research. This is the reason why this procedure is regarded as being economical.
Learn more about experimental control here
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Answer:
<em>Class </em>mobility.
Explanation:
<u>Class mobility </u>is a type of social mobility when representatives of a lower-class move to the higher class. It can occur as a result of changes in both classes.
In the given example it occurs both because of the fact that families in the higher class have fewer children and because some offsprings from a lower-class families are hardworking. The tendency that higher-class couples tend to have fewer children leads to the more available spaces in the entry-level labor force, which in turn creates more real opportunities for children from lower-class families. This in is itself becomes an extra motivator to work harder.
