Which statement best describes the heliocentric theory developed by ancient Indians? a. The planets rotate around the Sun.
b. The moon blocks the light from the Sun.
c. The Earth’s shadow creates moon phases.
d. The moon is shaped by the Sun and Earth.

How did the construction of the erie canal improve transportation in the united states in the 1820s? a. the canal connected the great lakes to the mississippi river. b. the canal connected the great lakes to the ohio river. c. the canal connected the atlantic and pacific oceans. d. the canal connected the great lakes to the atlantic ocean.