Refers to the study of relationships among organisms interacting with their environment, especially within and between communities of creatures.

Development of new communities in disturbed environments, such as a burned or a clear cut forest, is called

How many major plates cover the earth

According the inverse square law, doubling the distance from the source of the sound, a speaker, for example, will drop the sound 6 db each time. if you were standing in the back of an auditorium, 32 feet away from a speaker not using any amplification, would you be able to hear a speaker clearly? why or why not?