Which components of a galaxy move in circular patterns or revolve around a star?

Which statement is best described as a atom

Which of the following statements about hybrid orbitals is or are true? choose all that apply. choose all that apply. under sp2 hybridization, the large lobes point to the vertices of an equilateral triangle. after an atom undergoes sp hybridization there is one unhybridized p orbital on the atom. the angle between the large lobes of sp3 hybrids is 109.5∘

The footprints of a dinosaur and the burrow of an ancient shrimp are examples of which kind of fossils