The Heavy Elements in the Earth Were Formed in

Q33: Quasars<br>A) are weak sources of light and

Q34: Our galaxy is<br>A) one of the smallest

Q35: Information about the origin of the universe

Q36: The stars in the universe are<br>A) approximately

Q37: Galaxies<br>A) have a variety of shapes.<br>B) are

Q39: In the past several billion years the

Q40: Studies of the cosmic background radiation suggest

Q41: The number of planets outside the solar

Q42: The cosmic background radiation today<br>A) is present

Q43: Present evidence suggests that the universe<br>A) will