When adding a visual image to technical writing, the image should:
o
a. contrast with the text.
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b. work independently of the text.
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c. give the reader a break from the text
o
d. serve a clear purpose.
bal

incident infrared radiation is blocked. visible and ultraviolet radiation heat   earth.

earth radiates infrared radiation. infrared radiation is blocked and heats earth. visible and shortwave radiation heat earth.

earth radiates longwave radiation

longwave radiation is reflected downward longwave radiation heats earth