| Answer | Crossword Clue |
|---|---|
| ASIAN | One of about 3 billion |
| ASIAN | One of 3.9 billion |
| ASIAN | One of 3.5 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 |
