How are mountains formed and why would they form at different times in Earth's history?

Mountains are formed from the collision of the earths tectonic plates and they are formed at different times because of the geologi activity below them

Explanation:

d.) the average kinetic energy of the gas particles is greater in container b because its particles move faster.

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.