What is true of the lobes of a radio galaxy?
A) They are hotter than the galactic core.
B) They extend out along the galactic plane.
C) They form close to the edge of the galaxy.
D) They are perpendicular to the galactic plane.
E) They radiate primarily in X-rays.
Question 2
Of the main sequence stars, those of type ________ have the longest main-sequence life spans.
A) K B) M C) O D) B E) G