The atmosphere of the early Earth is currently thought to have contained:
A) carbon dioxide, water, oxygen, nitrogen, and hydrogen.
B) carbon dioxide, water, carbon monoxide, hydrogen, and nitrogen.
C) carbon dioxide, carbon monoxide, water, hydrogen, and nitric oxide.
D) carbon dioxide, ozone, nitric oxide, water, and hydrogen sulfide.
E) methane, water, ammonia, nitrogen, and oxygen.
Correct Answer:
Verified
Q13: The Earth's early atmosphere was probably strongly:
A)
Q14: A compound that could not have been
Q15: There is evidence that life existed about:
A)
Q16: Amino acids and other organic molecules were
Q17: The hypothesis that life developed from nonliving
Q19: Some protobionts have been shown to have
Q20: Assemblages of abiotically produced polymers are called:
A)
Q21: It has been suggested that RNA was
Q22: The earliest photosynthetic organisms arose about:
A) 3.8-4.6
Q23: Macromolecules that are capable of self-replication are:
A)
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents