ग्रहांच्या कक्षेचा आकार काय आहे? A. गोलाकार B. सरल रेषीय C. विवृत्तीय D. पसरलेले वर्तुळ

By Kepler's first law, planets move round the Sun in elliptical orbits, i.e. ovals, or 'stretched-out circles', with the Sun at one focus. The official key marks 'stretched-out circles', which describes the same elliptical shape in everyday words.