ಗ್ರಹಗಳ ಕಕ್ಷೆಯ ಆಕಾರ ಏನು? A. ದುಂಡಗಿನ ಆಕಾರ B. ನೇರ ರೇಖೆ C. ಅಂಡಾಕಾರ D. ವಲಯಗಳನ್ನು ವಿಸ್ತರಿಸಿದೆ

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.