Author Question: What are the shared common characteristics of the Moon and Mercury? What will be an ideal ... (Read 317 times)

bobthebuilder · **on:** Jul 27, 2018

What are the shared common characteristics of the Moon and Mercury?

What will be an ideal response?

Question 2

What physical feature of our planet is most dependent on supernova events?

a. oceans of water
b. a breathable atmosphere
c. organic chemicals
d. uranium in Earth's interior
e. a nickel-iron core

xthemafja · **Reply #1 on:** Jul 27, 2018

Answer to Question 1

Earth's Moon and Mercury are good subjects for comparative planetology. They are similar in a number of ways. Most important, they are small worlds; the Moon is only a fourth of Earth's diameter, and Mercury is just over a third of Earth's diameter. They have negligible atmospheres, their rotation has been altered by tides, their surfaces are heavily cratered, their lowlands are flooded in places by ancient lava flows, and both now have ancient, inactive surfaces.

Answer to Question 2

e