Answer:
Because it was important to there exictance
Explanation:
<span>Think of the three Primaries as the Parents in the family of colors. In paint pigments, pure Yellow, pure Red, and pure Blue are the only hues that cannot be created by mixing any other colors. </span>
The answer to the first is True, the answer to the second should be false, as well as the third question. Tempo refers to speed, to pace, not the frequency, and it is noted in a piece of work, it's not subjective.
A "sub genre" is essentially a classification of something within the genre it has already been classified in. For example hip hop might be a genre of music and a sub genre might be electronic hip hop. Electronic hip hop is another level of specificity to describe a musical genre, beyond the larger genre which is hip hop. This same method could be applied to many artistic concepts and classifications more generally.