24. History of Life on Earth
History of Life on Earth
Multiple Choice
Multiple ChoiceCurrently scientists think the early atmosphere probably consisted of __________.
A
O2, SO2, and H2O
B
N2, H2O, CO2, NH3, CH4, and O2
C
H2O, CH4, H2, and NH3
D
H2O, CH4, H2, NH3, and O2
E
N2, H2O, CO2, NH3, CH4, and H2
375
views
Related Videos
Related Practice
Showing 1 of 35 videos