<u>Answer:</u>
Crystal structure is a way how atoms or molecules are arranged and in what manner to form a Crystal and this arrangement helps to differentiate one crystal from the other.
Using a crystal structure we can tell that crystal of pyrite is cubic and crystal of gypsum is mono-clinic which helps to tell us that both the crystals are separate from one another because of the arrangement of the molecules and atoms in both.
They modified it buy cutting down trees and building factories and buildings in order to grow plants and fruits more effectively in a more precise inviorment!
I think it’s d bc the rest is based on your knowledge
