The "Land Bridge Theory" is helpful in explaining which of these situations? A) how mountains are formed by water B) how the Americas were populated from Asia C) how the continents broke apart millions of years ago Eliminate D) how Europeans were able to make colonies in North America

What is the formula for calcium iodide

Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.