Tropical air masses form over the warm equatorial regions of the world.

A) True
B) False

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

Reason i shouldnt turn back if i'm lost in the wilderness need fast

Explore the ways that boundaries influence identity, interaction and exchange. things to consider: what is the race/ethnicity. how easy is it to interact/trade with others.