Mountains are formed as a result of tectonic activity. What justifies this inference?

i won't lie i don't know so go online and ask google thats what i do

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.