Maybe some answer choices would help!<u><em> Then I will answer your question.</em></u>
Music a global phenomenon. People around the world appreciates music even though they don't understand the lyrics (because of the language). Music is a universal language. It makes people unite. For example, the recent famous song from Disney called "Let it Go". People around the world made different translations just to sing that song. I also agree to what sanaybrown posted, it's a way people express their feelings.
Answer:
Red-green color blindness can be broken down into two main types: Protan-type (“pro-tan”), which is a disorder of the first “prot-” type of retinal cones also called the L-cones, and Deutan-type (“do-tan”) which is a disorder of the second type of retinal cone also called the M-cones.
