1: Which of the following places are thought to be used in ancient civilizations for astronomical observations? Select all that apply.

a, Pyramids in Gaza
b, Stonehenge in England
c, Colosseum in Rome
d, Carnac in France

2: The heliocentric theory:

a, was immediately accepted
b, was proposed by Galileo
c, states that the earth revolves around the sun
d, proposed that the earth was the center of the solar system

3: Geocentric theory:

a, was initially rejected by the church
b, was supported by Copernicus and Galileo
c, stated that the sun rotated around the earth
d, all of the above