Removing energy will cause (1 point) a. particle motion to decrease with decreased kinetic energy b. particle motion to increase with decreased kinetic energy c. particle motion to increase with increased kinetic energy d. particle motion to decrease with increased kinetic energy

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)