Earth emits radiation with greatest intensity at
a. infrared wavelengths.
b. radio wavelengths.
c. visible wavelengths.
d. ultraviolet wavelengths.
e. X-ray wavelengths.
ANSWER: a
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Answer the following statement true (T) or false (F)
A(n) ____ can be defined as all heavenly bodies surrounding a particular star because of the star's dominant mass and gravity
a. ecliptic b. galaxy c. spectrum d. perihelion e. solar system
The Pleistocene Epoch began ________
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a. agricultural shift b. Green Revolution c. Industrial Revolution d. agrarian revolution e. all of these are correct