Study the image. The image shows how scientists think the continents were joined long ago. Scientists find fossils of an old mammal at the northernmost tip of North America. According this map, on which other continent would you expect to find the same fossil?

can you attach the

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.

if it's not useful, feel free to report for mistake in answer.