what we’re some characteristics of american indian cultures, and how and why did people move within the americas prior to contact with europeans?

Which of the following is a type of technology that can be used at a coal-burning power plant to remove both particulate matter and gases? bag filter catalytic converter cyclone electrostatic precipitator scrubber

Based on what you've learned about the professions, which ones appeal to you as a potential career and why? if none interest you as a future career, indicate another career you're interested in and explain why that career interests you.

Why does the blending of many different diciplines present both challenges and opportunities to enviromental scientist?