Which of the following accurately reflects the beliefs on earth's early history?
a. scientists believe that dna may have existed before rna.
b. scientists believe the early atmosphere lacked the oxygen necessary to support modern human life.
c. scientists believe that microspheres nearly prevented the development of early life.
d. scientists believe oxygen was plentiful in the early atmosphere.

The following statements accurately reflect the beliefs on Earth's early history:
B. Scientists believe the early atmosphere lacked the oxygen necessary to support modern human life.

The following statements are incorrect:
A. Scientists believe that DNA may have existed before RNA - Scientists actually believe the opposite - RNA may have existed before DNA.
C. Scientists believe that microspheres nearly prevented the development of early life.
D. Scientists believe that oxygen was plentiful in the early atmosphere - again, scientists believed the opposite