What were some of the preparations lewis and clark made before they began their expedition?

Which statements about characteristics of the Inca's civilization are true? 

Choose all answers that are correct.

the right answer is the end of world war ii

after the end of a global wwii all the nations involved, in an attempt to create an organization to maintain world peace. this agreement would work settling international disputes via negotiation and arbitration instead of leading the issues escalate to another war.

studies show tha in 7.5 billion years from now, the expanding sun will engulf, and destroy, the earth.