Multiple Choice
The early universe was composed mainly of which two elements?
A) hydrogen and helium
B) carbon and oxygen
C) hydrogen and oxygen
D) carbon and iron
E) nitrogen and oxygen
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q7: What two pre-Renaissance beliefs are contradicted by
Q42: On which objects in our solar system,
Q43: The number of classical planets in our
Q44: An unmanned robotic spacecraft has NOT landed
Q45: Human beings are composed almost entirely of
Q47: The Local Group is a member of
Q48: The distance to the center of the
Q49: If the radius of circle B
Q50: Which of the following is FALSE?<br>A) A
Q54: An observed pattern in nature is usually