I All elements emit and absorb characteristic s... - WAEC Physics 1999 Question
I. All elements emit and absorb characteristic spectra. II. Spectral analysis is an important method of identifying environmental pollutants. III. The chemical composition of stars could be determined using spectral analysis. Which of the statements above are correct?
A
I, II and III
B
II and III only
C
I and III only
D
I and II only
correct option: a
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