Which of the following statements is true? A) Although the planets orbit the sun, our solar system does not itself move in an or
bit. B) Our solar system follows an orbit through the Milky Way galaxy that takes millions (but not hundreds of millions) of years to complete. C) Our solar system follows an orbit through the Milky Way galaxy that takes hundreds of millions of years to complete. D) Our solar system is at the center of the Milky Way galaxy, which follows an orbit through the universe that takes billions of years to complete.
I really think the answer is (C) Our solar system follows an orbit through the Milky Way Galaxy that takes hundreds of millions of years to complete because our sun and solar system move at about 500,000 miles an hour (800,000 km/hr) in this huge orbit. So in 90 seconds, for example, we all move some 12,500 miles (20,000 km) in orbit around the galaxy's center
Back then , the city was shocked by smallpox epidemic. Since smallpox is easily transmitted by contact, overcrowded areas are the perfect breeding spot for smallpox ( they still has not developed small pox vaccine back then)
