Give one example of how the T (technology) variable could potentially increase the total impact of the United States, and one example of how it could potentially decrease the U. S. impact.

Technology can pollute and same time limit the quantity and quality of pollutants.

Explanation:

The impact of technology or T variable is that includes pollution, heat and noise all which can be controlled and caused by the production and sue of technology. The waste manufacturing is responsible for computer and electronics. In same cases the technology can decrease the emission and can reduce the environmental impacts.

Exposed great deposits of coal and iron ore