| Answer | Crossword Clue |
|---|---|
| ASIAN | One of about 3 billion |
| ASIAN | One of 3.5 billion |
| ASIAN | One of 3.9 billion |
| EON | Division of about one billion years |
| NEURON | One of about 100 billion in the human brain |
| ASIATICS | About one billion people. |
| EON | The Hadean was the first one, ending about 4 billion years ago |
| OMANI | One of about 3.4 million Asians |
| PUN | One of about 3,000 in Shakespeare's plays |
| parsecs | A unit of distance used in astronomy, equal to about 3.25 light years (3.08 Î 1016 meters). One parsec corresponds to the distance at which the mean radius of the earth's orbit subtends an angle of one second of arc |
