Practice Questions A (blank) is the place in which an organism lives and finds all of
the resources necessary for its survival. Examples include
(blank)

It's called the falling actionwrong subject by the way

Answer is: the equilibrium  shifts toward the reactants, to the left side of chemical reaction.it is because lead(ii) nitrate dissociates in water: pb(no₃)₂ → pb²⁺(aq) + 2no₃⁻(aq).according to lechatelier's principle, the position of equilibrium moves to counteract thechange (more lead cations, common ion), the position of equilibrium will move so that the concentration ofproducts decrease and concentration of reactants of chemical reaction increase.read more on -

It starts to rust i think

The answer is the third choice