Social class of bolivar

Match each model with its name and the name of the scientist who created it.

How did african americans the union during the civil war? a. by serving as representatives in congress b. by enlisting in the military to fight c. by organizing massive slave revolts in the south d. by negotiating for peace with the confederacy

What major land feature is located at 0* and 20* e? a sahara desert b kalahara desert c congo basin d the alps