Multiple Choice
Today's atmosphere on Earth is made up of nitrogen, oxygen, carbon dioxide, and water. According to all models, which of these was largely absent 3.8 billion years ago?
A) oxygen
B) nitrogen
C) carbon dioxide
D) water
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q54: Which of the following groups has the
Q55: Match each definition to the correct term<br>-These
Q56: Changes that occur at the genetic level
Q57: Astronomers have detected the presence of various
Q58: A set of regulator genes is known
Q60: _ can behave as an enzyme and
Q61: Plants from the genus <i>Solanum</i> include such
Q62: Which of the following would you expect
Q63: Which of the following refers to the
Q64: Match each definition to the correct term<br>-According