Which information should be added to the chart in order find out who ran a greater distance? the time spent running each day
the reference point used each day
the units used to measure distance each day
the location used by the runners each day

he would use the colour black

2b2t

explanation:

2b2t

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

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