Q. How old is our universe?
A) 10 billion year old
B) 20 billion year old
C) 15 billion year old
D) 5 billion year old
Explanation
The universe is vast relatively speaking the earth. Itself is almost only a speck. The universe is very old almost 20 billion years old. Huge dusters of galaxies comprises the universe
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.