The geocentric model of the Greeks consisted of a
A) flat Earth at the center of the universe surrounded by a dome-shaped sky
B) flat Earth at the center of the universe surrounded by a celestial sphere
C) spherical Earth at the center of the universe surrounded by a dome-shaped sky
D) spherical Earth at the center of the universe surrounded by a celestial sphere
Question 2
Compared to the average surface temperature on the surface of the Earth, the average surface temperature on the surface of Mars is
A) about the same
B) much lower
C) just slightly lower
D) much higher