Which one of these is not a characteristic of folk music?
a. folk music is often performed using portable instruments such as acoustic guitar, banjo, mandolin, and fiddle.
b. folk music is usually inspired by traditional music.
c. folk music is only created by descendants of english, scottish, and irish settlers.
d. folk music tends to be simple, rather than complex.

The correct answer is C) Folk music is only created by descendants of English, Scottish, and Irish settlers.

The statement that is not a characteristic of folk music is "Folk music is only created by descendants of English, Scottish, and Irish settlers."

Folk music has been characterized by rural music that was transmitted by generations. Its music that refers to common lives of people. It is a kind of music that is often performed using portable instruments such as acoustic guitar, banjo, mandolin, and fiddle. It is usually inspired by traditional music and tends to be simple, rather than complex. It appeals to many people in that folk music transmits topics or moments lived by conventional people.

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.