Multiple Choice
Air may best be described as ________.
A) an element
B) a compound
C) a mixture
D) none of these
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q15: Which of the following is the poorest
Q16: The north end of Earth's axis is
Q17: Which mechanism for heat transfer can operate
Q18: oxygen nitrogen hydrogen argon
Q19: The major absorber of terrestrial radiation is
Q21: All objects,regardless of temperature,radiate energy.
Q22: Which one of the following are the
Q23: The differences in summer and winter temperatures
Q24: The atmosphere acquires most of its energy
Q25: Tropic of Cancer Equator Arctic Circle Tropic