Author Question: According to Kepler results in mid-2013, what fraction of stars host an Earth-size planet? A) ... (Read 52 times)

Frost2351 · **on:** Jul 27, 2018

According to Kepler results in mid-2013, what fraction of stars host an Earth-size planet?

A) about 20 B) about 100 C) about 15 D) about 70

Question 2

Which of the following statements about the celestial equator is true at all latitudes?

A) It extends from your horizon due north, through your zenith, to your horizon due south.
B) It cuts the dome of your local sky exactly in half.
C) It represents an extension of Earth's equator onto the celestial sphere.
D) It lies along the band of light we call the Milky Way.
E) It extends from your horizon due east, through your zenith, to your horizon due west.