Choose all that apply What are two other ways that humans after the nitrogen cycle?
1.livestock farming
2.hunting mushrooms
3.burning fossils and forests
4.planting legumes

work input is how much work you put into a machine and work output is the work done by the machine according to how much work you put into it. i think?

the best answer is, earth strong )

explanation:

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.