TASK DEFINITION: Given a scientific passage and an answer, generate a question for the given answer.
PROBLEM: Passage: Photography by Kat. Ferns are common in the understory of the tropical rainforest . CC BY 2.0. Answer: understory

SOLUTION: In a tropical rainforest, where are ferns common?

PROBLEM: Passage: A metallic bond is the force of attraction between a positive metal ion and the valence electrons that surround itboth its own valence electrons and those of other ions of the same metal. The ions and electrons form a lattice-like structure. Only metals, such as the copper pictured in the Figure below , form metallic bonds. Answer: metallic bond

SOLUTION: What is the force of attraction between a positive metal ion and valence electrons?

PROBLEM: Passage: type of cancer in which bone marrow produces abnormal white blood cells that cannot fight infections. Answer: leukemia

SOLUTION:
What is the type of cancer in which bone marrow produces abnormal white blood cells that cannot fight infections?