Which of the following is not true of galaxies?
A. They are made of billions of stars.
B. Their size is measured in tens of thousands of light years.
C. A typical galaxy, such as the Milky Way, is about 5 billion miles in diameter.
D. Great clouds of gas and dust known as nebula occur within galaxies.
Answer:C
Which of the following is not true of galaxies?
A. They are made of billions of stars. B. Their size is measured in tens of thousands of light years. C. A typical galaxy, such as the Milky Way, is about 5 billion miles in diameter. D. Great clouds of gas and dust known as nebula occur within galaxies.