35.
which of the following techniques will slow a chemical reaction?

a introduce a catalyst

b increase the available surface area of reactants

c raise the concentration of reactants

d decrease the temperature

A through C actually tend to increase reactions. Catalysts, increased surface area and increased concentration all tend to do that. But decreased temperature means decreased energy and speed of the molecules/atoms, thus slowing the reaction.

Bees shall never produce milk no matter what but this is a joke and the answer is a breast that produces milk.