The Kansas-Nebraska Act was passed by the U.S. Congress on May 30, 1854. It allowed people in the territories ofKansas and Nebraska to decide for themselves whether or not to allow slavery within their borders. The Actserved to repeal the Missouri Compromise of 1820 which prohibited slavery north of latitude 36°30´.
<span>Lines of longitude and latitude are used to create a system of coordinates. hope this helps</span>
Answer:
system of proportional representation
Explanation:
Answer:In 1947, Salk took a position at University of Pittsburgh, where he began conducting research on polio, also known as infantile paralysis. By 1951, Salk had determined that there were three distinct types of polio viruses and was able to develop a "killed virus" vaccine for the disease.
Explanation:
Once America entered World War II after the bombing of Pearl Harbor, the federal government called on businesses all over the country to increase production of war materials (ammunition, guns, airplanes, etc.). This need for the aforementioned products caused businesses to seek new employees to hire. Considering that millions of men all over the country were drafted into the war, this resulted in women being persuaded to join the work force.
Since women joined the workforce and men were employed by the military, the unemployment rate drops dramatically during World War II. Since more people were employed, more American citizens were getting paid consistently. This helped to ensure that America finally escaped the Great Depression once and for all.