Sir isaac newton determined that gravity has a fixed acceleration on earth. the earth pulls objects towards it with a fixed acceleration at -9.8 m/s2. this is a as it states a scientifically accepted fact about the natural world.

you : ) : ) : )

free points always

the answer is c my brotha. c.   formed an alliance with the soviet union.

you didn't list the options. however, a few communist countries today are: the people's republic of china, north korea, and cuba.