Natural selection could not occur without environment, and a act on animal.
Many fuels can come out of the process, such as gasoline, kerosene, diesel fuel, liquified petroleum gas, and jet fuel.
Answer:
C
Explanation:
A system is at equilibrium when the rates of opposing reactions are equal.
Answer A does not show the rate of reactions, it only shows concentrations of reactants.
Answer B only shows constants, it does not show rates of reactions.
