2. Which of the following is a physical property of matter that is always the same regardless of size or amount?

A. Mass
B. Volume
C. Density
D. Solubility

HELP

The many stone tools, fragmentary animal bones, and teeth found at gran dolina, spain, indicate that hominids there? a. processed and consumed animals and other hominids. b. did not differ appreciably from earlier asian homo erectus. c. were similar to later homo sapiens. d. none of the above