Match the words at the left to the correct blanks in the sentences at right. Use each choice only once.

Question

A. A camera is an example of an instrument used for _________observations.

B. _________ refers to telescopic observations in which we separate an object's light so we can measure its intensity at different wavelengths.

C. If we want to confirm that a star's brightness alternately dims and brightens, we need __________ observations of the star.

D. The familiar twinkling of the stars is caused by _____________, which also blurs telescopic images.

E. Human civilization is responsible for what astronomers call ____________.

Answer 1

Answer(s):
A. imaging
B. Spectroscopy
C. time monitoring
D. atmospheric turbulence
E. light pollution.