MULTIPLE CHOICE QUESTION So far, we have been adding energy and
temperature (overall) has been increasing
from the start of the graph to the end. The
phase changes that occurred are

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)