Catherine is preparing a realistic model of the solar system. to show the orbital path of the planets, she gathers rings of different shapes. what shapes should she use for earths orbit?

a) ellipse

b) hexagon

c) circle

d) hyberbola

Which of the following is evidence to the past existence of glaciers?

Which of the following events did not occur as a result of china’s open-door policy? a. trade between japan and china was encouraged. b. all countries were given equal access to chinese ports. c. foreign influence in china increased. d. the influence of the communist party weakened.

Which city area has the most accessible oil reserves a) caspian sea b) siberia c)arctic coast d)lake baikal