Biology, 31.07.2019 04:00 brewerroserb
Mechanical (sound) waves are unable to travel through a vacuum, such as through space, but radio waves are transmitted to earth from satellites. how is this possible? a) radio waves are electromagnetic waves. b) satellites are located within our atmosphere. c) radio waves are very high energy mechanical waves. d) radio waves are changed to gamma rays for transmission. submit
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Biology, 21.06.2019 21:30, rosarioemily580
Which of these statements are true about scientific theories and hypothesis
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Biology, 22.06.2019 04:50, luusperezzz
In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the
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