Question

1. what are planetary orbits shaped like?

an epicycle
an ellipse
a cloud
a circle

Explanation:

Planetary orbits are described by Kepler's laws of planetary motion, which state that each planet orbits the Sun in an elliptical path with the Sun at one of the two foci. Epicycles were part of an outdated geocentric model, clouds are not orbital shapes, and circles are a special case of ellipses but not the actual shape of most planetary orbits.

Answer:

an ellipse