A Density Dependent Limiting Factor is a limiting factor of a population that can affect population growth in greater ways the larger a population grows. In each of the following blanks list a density dependent limiting factor that can affect the growth of human populations.

answer; natural resources;

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.

level 4 to level 2 : ))

the answer your looking for is c).