posted by bubba on .
. How does the principle of uniformitarianism accounts for occasional catastrophic events such as meteorite impacts, huge volcanic eruptions, or great earthquakes?
In what ways do geologic processes affect a person's daily life?
. When astronauts brought back rock samples from the Moon, the minerals present were mostly the same as those found on Earth. What are reasons why this might be so? Would you expect minerals on Mars or Venus to be the same, or at least very similar, to those on Earth?