Earth: An Introduction to Physical Geology (12th Edition)

by Tarbuck, Edward J.; Lutgens, Frederick K.; Tasa, Dennis G.

Published by Pearson

ISBN 10: 0134074254

ISBN 13: 978-0-13407-425-2

Chapter 22 - Section 22.2 - Birth of a Planet - Concept Checks - Page 73: 1

Answer

Hydrogen and Helium were the two elements that made up most of the very early universe.

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