The 3rd Law because the action of the climber pulling on a rope causes a reaction that makes their body go up/lift up.:)
H2+1/2O2-->H2O
since there are two atoms of hydrogen present in the reactants and in the product you don't need to add any number before H2
we add 1/2 before O2 because only 1 atom is needed for the water molecule
Pollution is always a good way to go but you don't have to do air pollution you can do water pollution or both air and water pollution.
Plasma Membrane is the answer
