To which planet do scientist compare to kepler-10

In which of these cases are the two wave points considered to be in phase with each other?

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)

What is one real world example of a colligative property?