<span>More than 20 million. The true growth of cities in the United States along with nature of its democratic rule led to a massive surplus in immigration during this span of time. Many of these immigrants were European in nature. One such example to demonstrate the massive surplus would be the city of New York, which was predominately foreign based around the year 1900.</span>
Answer:
A researcher proposes to join a moderated support group for cancer survivors posing as a survivor. She plans to insert comments to see how the members respond.
Explanation:
Supporting a group of cancer survivors and posing as a survivor is highly unethical. It might directly or indirectly affect the sentiments of cancer patients which is highly discouraged when conducting a research. Moreover, the research findings will not turn out to be authentic as the researcher did not actually suffer the disease.
Answer:
The engineers of ancient Rome designed and constructed many projects to serve the needs of an urban and an imperial nation. With their use of the semicircular arch, the barrel vault, and hydraulic cement, they transformed architecture and construction in the ancient world. The results were impressive in scale and practicality and influential in their shaping of a timeless architectural style.
Explanation:
Answer:
This is an example of an experimental design.
Explanation:
Experimental design in research involves controlling the variables in order to prove the hypothesis. In an experimental design there must be an experimental group, that in this case is the group that received an herbal supplement, and a control group, that was only administered placebo. By having a control group, both groups can be measured and compared at the end of the experimental phase, to measure the influence of the independent variable.
