Why do some scientists say that the Moon may have been important for the evolution of life on the Earth?
A) Meteorites from the Moon brought microscopic life to the Earth.
B) It stabilized the earth's axis tilt, preventing large climate changes.
C) It created the ocean tides, and life most likely started in tide pools.
D) It shielded the Earth during the heavy-bombardment phase of the early solar system.
E) There is no known connection between the Moon and the evolution of life on the Earth.
Question 2
One of the nails in the coffin for the Earth-centered universe was
A) the retrograde motion of the planets.
B) Galileo's observation of stars in the Milky Way.
C) eclipses of the Sun.
D) Galileo's observations of the moons of Jupiter.
E) the phases of the Moon.