The Inca developed important medical practices, including surgery on the human skull. In such operations, they cleaned the area to be operated on and then gave the patient a drug to make him or her unconscious—procedures similar to the modern use of antiseptics and anesthesia.
The amount of matter in an object
Its C.) Native Americans. They were the last to be granted U.S citizenship.
Answer:
option a is the correct one
hope it's helpful
Explanation:
It was first used in 1910 which makes it over 100 years ago
