Answer:
Farming allowed humans to form permanent settlements and abandon their nomadic ways. Humans shifted from hunting and gathering models to fixed farming villages.
Answer:
To improve your singing and your tone, it's a great idea to practice both your head voice and your chest voice, and be able to recognize when each is best to use low and mid-range notes are often more comfortably sung in chest voice, while high notes require the use of your head voice.
Explanation:
The answer is B) Pythagoras
