Group 1 was more careful in choosing the person, whereas Group 2 might have been more careless.
What are you looking for? bc i can’t see what you are asking
I think it’s Object 3
Hopefully this helps
Answer : It increases
Rusting is where oxygen binds to iron and forms iron oxide.
So once iron rusts, there is oxygen, just not in air; it's in the iron oxide.
All reactions are reversible, albeit at different rates (the "irreversible" ones are still reversible, but much slower given that they take so much collision luck and energy.
