Coll Col Il 1. Audible sound a. more than 20 kHz 2. Infra sound b. 20 Hz to 20 kHz 3. Ultrasound c. less than 20 Hz

Coll Col Il 1. Audible sound a. more than 20 kHz 2. Infra sound b. 2

1.	Coll Col Il 1. Audible sound a. more than 20 kHz 2. Infra sound b. 20 Hz to 20 kHz 3. Ultrasound c. less than 20 Hz
Answer» he ABILITY of families to meet their most basic needs is an ... Such a COMPARISON can show, for example, what ... NEED to live MODESTLY in the communities where they ...