Explain the historical circumstances that led to the spread of disease during the European conquest of the Americas.

What major factors play a role in global warming? 1. human activity and normal climate conditions 2. natural factors and human activity 3. normal climate conditions and abnormal human activities 4. abnormal human activities and natural factors

Food can come from sustainable or unsustainable resources. why has the united nations suggested that bugs could be a better source of food than animals like pigs or cattle?

In russia which of these challenges affects the transportation of both petroleum products and other goods?