Answer:
D. Mars takes a longer time to orbit the Sun than Mercury
Explanation:
Mercury is closer to the Sun than Mars, therefore it has a smaller orbit. One year on Mercury is 88 Earth days and One year on Mars is 687 Earth days.
B. Crystal size is a function of cooling time. The longer a melt cools the larger the crystals.
Answer: False
Explanation: Because there is no way erosion is a major problem along coastlines in every continent.
I think it's B but I'm not to sure. hope that at least kinda helps.
