Explain how early cultures contributed to the area of earth science.

cultures that contributed to modern scientific study ... Identify possible source of Earth's magnetic field ... turn it into glucose, animals eat plants, CO2 is released when when animal poops ... Describe one way ecosystems respond to change.

Explanation:

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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