Both of them are the most important cities in their countries. They are capitals and cultural, demographic and industrial centres.
Our Sun rotates about the center of our Galaxy at 1000 years that is the answer to <span>What is the period of the Sun's orbital motion about the center of the Galaxy 1</span>000 years
The main idea of this paragraph is A
The large landmasses on Earth are called continents. There are seven recognized continents on the planet: Africa, Antarctica, Asia, Australia/Oceania, Europe, North America, and South America. The largest continent is Asia.