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Q: A huge system of billions of stars and cloud of dust and gases is known as:
  • A. Universe
  • B. Galaxy
  • C. Constellation
  • D. World
Correct Answer: Option B - A Galaxy is a huge system of billions of stars and clouds of dust and gases. There are millions of such galaxies that make the universe. The milky way is the galaxy that includes our solar system.
B. A Galaxy is a huge system of billions of stars and clouds of dust and gases. There are millions of such galaxies that make the universe. The milky way is the galaxy that includes our solar system.

Explanations:

A Galaxy is a huge system of billions of stars and clouds of dust and gases. There are millions of such galaxies that make the universe. The milky way is the galaxy that includes our solar system.