Multiple Choice
Earth's fourth atmosphere likely formed from
A) water vapor condensed when Earth cooled.
B) photosynthetic activity of ocean bacteria.
C) outgassing from Earth's interior.
D) oxygen molecules absorbing sunlight and forming protective ozone.
E) respiration of early land mammals.
Correct Answer:
Verified
Correct Answer:
Verified
Q26: Which of the following is true of
Q27: The reaction of automobile exhaust and ultraviolet
Q28: Which of the following is true?<br>A)Natural sources
Q29: Oxygen (O2)is<br>A)a gas which principally originates from
Q30: Which of the following is true of
Q32: Nitrogen (N2)is<br>A)a key component of life,integrated into
Q33: Which of the following are affected by
Q34: In the lower atmosphere,H2SO4<br>A)is also called black
Q35: Acid deposition results from<br>A)carbonic acids dissolved from
Q36: Based on function,the atmosphere has<br>A)five regions beginning