List all of the types and locations of stream pollution you noted during the field trip. The City of Austin has built the main sewer lines along the creeks whenever possible. Yet, there were also times when the waters were shallow and dinosaurs waded around in our region. The land was not still in that time, nor is it still todav.
High land is worn low and flat, and old flat land is raised upward to form new hills or mountains.
Austin is now what was once the bottom of the sea. What we are concerned with is what happens to this sea floor when it becomes high ground and when wind, rain, and man begin to work on it. When it rains, a part evaporates and re-urns to the air.