What does it mean when world war one is referred to as a total war

How does a comet change when it comes close to the sun

States' compliance with the native american reservation treaties drawn up by the federal government for the native american nations is:

Which act of the conquistador pizarro was crucial in overthrowing the inca? a. the destruction of the ancient inca city, machu picchu b. the siege of the inca capital near the cuzco valley c. the execution of the last inca ruler, atahualpa d. the unexpected deaths of 3 million inca warriors e. the murder of former inca emperor, huascar