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43 votes
43 votes
26. Electromagnetic radiation including light travels fastest in

(1 point)
Seawater
fresh water
solids
empty space/vacuum

User Firnnauriel
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2 Answers

15 votes
15 votes
Empty space/vacuum is the answer
User Martin Weber
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19 votes
19 votes

EM waves travel fastest in a vacuum because there are no particles to block their path.

User Pam
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