Seventy-one percent of the Earth’s surface is covered by water. This may cause you to ask, “If there is so much water, why are people so concerned about protecting it?” First, all of the Earth’s systems interact,

First Page		Document Content
Date: 2013-07-04 11:17:36		Seventy-one percent of the Earth’s surface is covered by water. This may cause you to ask, “If there is so much water, why are people so concerned about protecting it?” First, all of the Earth’s systems interact, Add to Reading List Source URL: howardtodumfloridaspringsinstitute.wildapricot.org Download Document from Source Website File Size: 220,40 KB Share Document on Facebook