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Bonus Question – Water pollution is a problem throughout the world.  In the Gulf of Mexico, there are a number of different pollutants from different sources (both point and non-point).  Use the associated graphs (below) to determine the second largest combined source of phosphorus and nitrogen in the Gulf of Mexico.

The difference between chemical and physical weathering of rock is that

The U.S. legislation that is designed to tax chemical and petroleum industries to help clean up hazardous waste-sites, is the

Per capita carbon emissions tend to be highest in

Using the figure below. The arrows in the line graphs are most likely representative of which of the following?

A study that monitors human populations impacted by the BP Deepwater Horizon spill would be considered a:

Using the figure below. The arrows in the line graphs are most likely representative of which of the following?

When non-local species spread rapidly across large areas, they are called

Using the figure below. The arrows in the line graphs are most likely representative of which of the following?

Malthus noted that while food supply grows ____, human populations grow ____.