Ascientist uses simulation because it

Because it is possible to simulate results and explain possible questions.

Explanation:

Simulation refers to the action of representing something, imitating or pretending what is not, pretending. With this, scientists can predict the possible results of their research, repair possible errors and answer questions in advance. In this way, search time is optimized and problems are repaired making the search better leveraged.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

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