4. The shortest waves present can be detected by the 6. Are dangerous because they can damage living cells and can cause cancer 7. They have shorter wavelengths than X-rays because energy changes within the nucleus. 8. They can be produced by making olectricity oscllate in an antenna. 9. Used to transmit sound and picture information over long distances. 10. They are more dangerous than Xrays because radioective substance emit them.