Tuba is used to add weight to the lowest orchestral register.
Tuba is the largest and lowest-pitched musical instrument in the brass family. Its sound is produced by lip vibration into a large mouthpiece. It first appeared in the mid 19th century, making it one of the newest instruments in the modern orchestra and concert band.
Answer: The answer is "New farming techniques leading to more food."
Explanation: It is the only one that is related to agriculture.
Answer:i hope i can help you but i can,t sorry
Explanation:
Check out the "out of Africa" theory. Basically it said people migrated from Africa to Europe and from the Russia area to the Americas via the Bering strait.<span />