About how old are the earliest stone tools?
a. 2.6 million years old
b. 25,000 years old
c. 250,000 years old
d. 25 million years old
e. none of these
Answer: A
About how old are the earliest stone tools?
a. 2.6 million years old
b. 25,000 years old
c. 250,000 years old
d. 25 million years old
e. none of these