Quiz
1. Animals can predict natural disasters.   true .  false.
2. Scientist use animals to help warn humans about natural disasters.   true .   false.
3. Humans can hear 20 to 20,000 hertz. true.  false .
4. Records of animals fleeing natural disasters goes back ‘til 400 B.C. true .  false.
5. All animals ( except humans) can see ultraviolet. true. false .