BTB changing color is evidence for pic one
A: matter movement
B: Matter change
C: Ene...
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BTB changing color is evidence for pic one
A: matter movement
B: Matter change
C: Energy change
also it is because pick one
A:it detects the diff type of energy
B: it detects matter moving around from one place to another
C: it detects diff amounts of chemicals in the air
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