<span>the question like this is called assumptions, but the assumptions have to be proved by experiments and prove to be the best, but generally in science, theories might change from time to time, so in science, it is necessary to prove the hypothesis, not just by putting up the theories.
hope this helps </span>
Carlos: ¿Cuando es tu cumpleaños?
Jaime:Bien y tu that would be the answer if its a response to her
