Question 18 chapter 7.2. in an elliptical planetary orbit, where is the sun located? o a at the center o b. at one of the foci o c. along the minor axis od, somewhere on the ellipse question 19 chapter 7.2. which of kepler's laws can be described in this manner: the time to complete one orbit (i. e. the orbital period) would be related to the semi-major axis. o a kepler's first law b. kepler's second law o g. kepler's third law o d kepler's fourth law question 20 chapter 7.2. which planet orbits exactly on the ecliptic plane? 0 a. jupiter o b. mercury oc proxima centauri o d. earth ciek saue and stbmit to sque and submit. click save all answers to sqve all answers