Author Question: Which of the following is not true of Mercury? A) It has many moons. B) At any given time, about ... (Read 13 times)

erika · **on:** Jul 27, 2018

Which of the following is not true of Mercury?

A) It has many moons.
B) At any given time, about half the planet is colder than Antarctica.
C) Its surface is heavily cratered.
D) Mercury has essentially no atmosphere.

Question 2

Halley's comet is named after the English scientist Edmund Halley because he

A) discovered it.
B) was the first to see it in 1682.
C) calculated its orbit and predicted that it would return in 1758.
D) was the most famous astronomer in England during its appearance.
E) was the first to publish pictures of it and report it to the International Astronomical Union (IAU).