Use what you know about relative dating to choose the correct answers from the drop-down menus. ethan determines that layer b is 3.5 million years old. due to the , he can estimate that layer a is years old.

Sorry i dont understand the question can you rephase it?

Its the second one nonmetals are moldable and easily shaped 

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 -