I believe the answer is 20 feet. According to McBurney and Collings, the average threshold of human hearing is the tick of a watch from 20 feet in very quiet condition.
The human hearing range is a description of the pitches and loudness levels a person can hear before feeling discomfort. There is a variety of sounds in our environment, ranging from faint sounds like birdsong and rustling leaves to louder sounds like music, yelling, and industrial noise.
Answer: herbivores will most likely thrive in this environment.
When a single cell organism splits in too
<span>If a client in the ambulatory care clinic begins to experience shortness of breath and facial and throat edema while receiving a pegloticase infusion a nurse's best action would be to notify emergency personnel.</span>
<span>2/Blood flows at an average speed of 0.40 m/s in a horizontal artery of radius 1.0 cm. The average pressure is 1.4 × 104N/m2 above atmospheric pressure (the gauge pressure).</span>