"<span>A. They repressed a majority of people in favor of a minority" would be the best answer as to how the </span>Romanov tsars undermined their own rule. This eventually led to revolution.
Sputnik I was the world's first ever artificial satellite that launched by the Soviet Union in 1957. This marked the start of the "space age" which pushed the race between the US and the USSR in the field. Because of this "competition", many scientific discoveries were made to study and even travel to outer space.
The correct answer is "It decreases". Numerous studies report that birth rate are higher in developing countries in comparison to developed countries. Once a developing country reaches the status of industrialized it is very likely that the birth rate would decrease. Two factors that explain the high birth rates in developing countries are the lack of access to contraceptives and, generally lower levels of education respect to developed countries.
<span>Americans believe that the main purpose of government is to protect the citizens from danger.</span>
