Answer:
The Solar System is located at a radius of about 27,000 light-years from the Galactic Center, on the inner edge of the Orion Arm, one of the spiral-shaped concentrations of gas and dust. The stars in the innermost 10,000 light-years form a bulge and one or more bars that radiate from the bulge.
Number of stars: 100–400 billion
Answer:
The Neolithic Age was a major change in the way humans lived their lives. During the Paleolithic Age, humans were hunter-gatherers and nomads. As a result of the Neolithic Age, an excess of food supplies led to the growth of civilizations.
Explanation:
B. The emancipation proclamation was what gave slaves their freedom when Lincoln issued the proclamation in 1863.
Answer:
150 years ago, the construction of the First Transcontinental Railway was completed in the United States. The implementation of the project has become one of the most ambitious scientific and technological achievements of the United States in the 19th century and has led to a revival of the national economy. However, the construction was mainly carried out in territories captured from the Indians. According to historians, the highway has greatly accelerated the process of extermination and enslavement of the indigenous people of North America, and also contributed to the destruction of natural diversity on the continent.
Explanation:
