Title: Botany.
Question: What are roots used for in beets and carrots?

Title: Geological history of Earth.
Question: By what height did sea levels rise at the end of the last glacial period?

Title: Antenna (radio).
Question: At lesser frequencies what can account for incorrect assumptions about efficiency?

Title: To Kill a Mockingbird.
Question:
Murders were the base for which story that Capote wrote?