Exam 15: Water Pollution- Into the Gulf: the Makings of a Dead Zone, Far Upstream- Food Resources

Discuss the pros and cons of using drainage pipes for agricultural fields.

Which crop releases the most nitrogen into the soil?

In many scientists' opinions, what is the key to saving the ecosystems of the Gulf of Mexico?

Discuss some ways that human alteration of watersheds has affected the quality of surface water and the quantity of groundwater.

How can you explain to your neighbor that her perfectly manicured, monocultural, heavily fertilized lawn may be contributing to the destruction of ecosystems in the Gulf of Mexico?

Which is NOT an aspect of the Clean Water Act?

Why are point source pollution sources considered easier to "fix" than nonpoint source pollution sources?

What plant nutrients are found in animal waste and fertilizer that can cause eutrophication?

Let's say you become interested in studying the amount of water pollution in a stream that runs through your backyard. Without special equipment, how could you perform a biological assessment on the stream?

Is eutrophication typically a point source or nonpoint source pollution type?

What is one method to determine how healthy an ecosystem is?

In drought years, the size of the hypoxic zone in the Gulf and Mexico is:

If you find pollution at a certain point in the river, would you look at the watershed upstream or downstream to determine its origin?

Which is an example of a point source pollution source?

Which characteristic is true of all water pollution?

In which scenario would it be easier to identify a source of the eutrophication: a river with a large watershed or a river with a small watershed?

A watershed area covered by concrete will do what to the quantity of groundwater?

In their efforts to address hypoxia in the Gulf of Mexico, the Gulf Task Force's recommendations consider: