Information about how the 1918 flu spread in Europe during the first wave would best fit in which section?

Spanish flu hit the world in three waves, it remains uncertain where the virus first emerged, it quickly spread through western Europe, and by July it had spread to Poland. It resulted in an estimated 25 million deaths.

Explanation:

a social contract.

"a social contract is an agreement between citizens and their leader where the citizens give up certain freedoms in exchange for protection. the constitution of the united states is an example of a social contract."

australian plates collided into eurasian plates, and the himalayas formed. the andes mountain range the himalayas and the islands of japan form differently. the andes mountain range formed at the convergent boundary of an oceanic plate and continental plate.