<span>The largest
experimental statistical study that has happened in the past and was conducted
for is the Public Health Service Experiment that has happened in the year 1954,
this experiment has been conducted because of the Salk Vaccine, which is also
known as the Polio Vaccine.</span>
Answer:
They brought horses and they softened the soil in the plains, they killed off millions of buffalo that ate the native plants and killed extreme numbers of native life.
Explanation:
<u>Answer:</u>
We study art because Art is the highest expression of <u>culture</u>. <u>Artistic</u> works that attempt to depict objects as they are in actual, visible reality are called realistic.
Such artistic works may include a painting, a sculpture or a drawing, engravings, wood cuts, maps which possesses an artistic quality. An artist has certain qualities which makes these objects created by the artist as they are present in reality and in actual.