Q. What is the average distance (approximate) between the Sun and the Earth?
Answer: 150x10⁶ km
Notes: The average distance from Earth to the Sun, known as one astronomical unit (AU), is approximately 150 million kilometers or 1.5 × 10⁸ km, which matches 150 × 10⁶ km. This is the standard value used in astronomy. Options a), b), and c) significantly underestimate the distance. Precise radar ranging measurements confirm this value at about 149.6 million km, rounded to 150 million km.