HtetPaing9358
01.07.2019 •
Physics
Which statement best defines a universal law? a) it is in effect some of the time. b) it is in effect at all times. c) it operates only under specific conditions. d) it changes over time.
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Ответ:
hope my answer helps
this thing is asking for 20 characters'
Ответ:
It helps someone to concentrate..on something.