Answer:
True
Explanation:
Because there were volcanoes near that area
Uhh i think HTML or PDF.
People "composing" music.
Answer: all of the above
The best way to start would be by researching different types of planes to see which kind you like best.
An example could be that G major has one sharp(f sharp) but it an f sharp even if you are playing in the 1st octave or the 5th one.