The earliest human culture, involving villages and a sense of history, developed
A) about 10,000 years ago.
B) about one billion years ago.
C) a few million years ago.
D) 100,000 to 200,000 years ago.
E) about 1000 years ago.
Question 2
In the special theory of relativity, what does the word special refer to?
A) This theory is restricted to the study of light beams.
B) This theory is restricted to the study of gravitational forces.
C) This theory is restricted to the observations of stationary observers.
D) This theory is restricted to the observations of accelerated observers.
E) This theory is restricted to the observations of non-accelerated observers.