Mario wants to split a beam of white light into different colors. which tool will work best?

a.
a prism

b.
a glass window pane

c.
concave lens

d.
convex lens

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)