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Italy’s neighbors became jealous and afraid of the successful northern Italians. Finally, in desperation, they _____________________________.

Christopher Columbus and _________________________ were both Italian explorers who had to sail under foreign flags in order to do any significant exploration.

Which of the following was NOT a consequence of urbanization and lucrative trading?

Briefly explain why lichens (fungus+alage) are great pioneer species during primary succession. (Complete sentences needed)

All of the following apply to the particulate matter (PMs) pollutants, EXCEPT: 

List two consequences of malnourishment mentioned in the lecture. 

Pathogens and waterborne diseases enter drinking water supplies from ________.

Corn and cotton crops were modified to produce toxins that kill insects, reducing the use of pesticides. 

Where does mercury water pollution come from? 

Our global ecological footprint is 50% more than the Earth can support.