Rapid population growth and rebellion
The sonata form.
In particular, the sonata form typically was the structure of the first movement of classical symphonies. Sonata form follows this pattern:
Exposition: Two musical themes are set forth or "exposed" to the listeners. (Thus the label "exposition.") The first theme is usually strong, the second quieter, more gentle.
Development: Then the two themes are explored or "developed" in various ways and played off of one another.
Recapitulation: Finally, the themes are restated in the order in which they were introduced in the exposition section and reaffirmed as the musical themes of the movement.
The answer to the question will be letter C.
<u>Machine Guns</u> because tanks and poison gas weapons had not been created yet until i think WW1
<span>The atmosphere contains a large amount of nitrogen. Some plants take nitrogen straight from the air and use it to build nutrients needed for growth. Atmospheric wind erodes land so it can be broken down to form life-sustaining soil.</span>