The building of temples and great cities without modern machinery, using astronomy to predict astrological cycles and plant crops and using their language to communicate and measure time are some of the Mayans most notable achievements.<span> During a 600-year period of time, which was from 300 A.D. until 900 A.D., the Mayans made many great achievements in science, communications, engineering and agriculture</span>
b-provided military supplies to countries controlled by communists
He was the director of the CIA so the answer is C....
Answer:
Using coordinates help people understand, know they are going, and where they have already been. Otherwise they could get lost and they wouldnt know.
Explanation: