Author Question: G-, K-, and M-type stars A) do not contain enough heavy elements to form planets B) have ... (Read 54 times)

krzymel · **on:** Jul 27, 2018

G-, K-, and M-type stars

A) do not contain enough heavy elements to form planets
B) have lifetimes long enough for planets to form and for simple life to appear, but not long enough for advanced life to develop
C) have lifetimes too short for planet formation
D) have lifetimes long enough for advanced life to evolve

Question 2

To date, meteorites have been identified originating from which planets and moons?

A) Mars only
B) All terrestrial planets
C) The Moon and Mars
D) The Moon only