Problem: Does "The melting of ice caps and glaciers contributed to a rise in sea levels, recognizable from the fact that Silurian sediments overlie eroded Ordovician sediments, forming an unconformity." answer the question "What did the melting of ice on Gondwana add to?"

A: yes

Problem: Does "There was no principle analogous to separation of church and state in ancient Rome." answer the question "What kind of political separation did not exist in Rome?"

A: yes

Problem: Does "After the Civil War, Houston businessmen initiated efforts to widen the city's extensive system of bayous so the city could accept more commerce between downtown and the nearby port of Galveston." answer the question "Which Civil War general used Houston as a headquarters?"

A:
no