While we think we know a lot about such a common substance, it actually does quite a few mysterious things. Let's try something a little different.

True is ur answer : )

Answer solar wind(auroras)

Yes, it is possible.in a chemical reaction, the mass of the system is conserved. mass is not created nor destroyed in a reaction. the products come from the reactants.so by changing the number of reactants, there will be less reactants available to become products, thus reducing the amount of products.