Answer:
(b) to explain how light travels.
Explanation: Hope this helped
Answer:
Prefix: CO
Prefix meaning: Together
Explanation:
Meaning of the word <em>coalesce</em>: Two or more elements growing together until becoming a unity or a whole mass. The <u>prefix</u> <em>co </em>gives a sense of an element doing something jointly with somenthing else to achieve a common goal.
The answer would be 90, because it will
