Question

The theories on the origin and expansion of the universe have changed from time to time. Which of these best explains why the theories about the universe change over a period of time?

new scientific investigations lead to new theories

modern scientists reject old theories in every century

the universe evolves constantly and requires new theories to describe it

the discoveries of all scientists in different centuries have to be incorporated

Answer 1

i am not totally sure but i think new scientific investigations lead to new theories

Answer 2

thanks mate :D

Answer 3

i am 90 % sure dude :-)