Question

9. Planet Berth! Imagine a planet, which we’ll call Berth, orbiting a star identical to the sun at a distance of 1 AU. Assume that Berth has eight times as much mass as Earth and is twice as large as Earth in diameter.

a) How does Berth’s density compare to Earth’s

b) How does Berth’s surface area compare to the Earth’s?

c) Based on your answers to a) and b), discuss how Berth’s geological history is likely to have differed from Earth’s. Specifically, what can you say about the composition of Berth, the activity of its core, and the thickness of its atmosphere and greenhouse effect?

Answer 1