As population density , competition increases.

As population density increases, competition increases.

Explanation:

Population density refers to total number of individuals present in unit area of the habitat. Competition refers to interaction among the individuals that have demand for a common essential resource. Increase in population density serves to increase the competition among individuals for the available resources such as food, space, water etc.

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.