Given a scientific passage and an answer, generate a question for the given answer.

Input: Consider Input: Passage: Molecular compounds are inorganic compounds that take the form of discrete molecules . Examples include such familiar substance as water (H 2 O) and carbon dioxide (CO 2 ). These compounds are very different from ionic compounds like sodium chloride (NaCl). Ionic compounds are formed when metal atoms lose one or more of their electrons to nonmetal atoms. The resulting cations and anions are electrostatically attracted to each other. Answer: molecular compounds

Output: What are inorganic compounds that take the form of discrete molecules called?

Input: Consider Input: Passage: Diagram of a typical prokaryotic cell. Among other things, prokaryotic cells have a plasma membrane, cytoplasm, ribosomes, and DNA. Prokaryotes do not have membrane-bound organelles or a cell nucleus. Answer: not membrane-bound

Output: What are unique about prokaryotic cells' organelles?

Input: Consider Input: Passage: Global carbon dioxide emissions from fossil fuel consumption and cement production. The black line represents all emission types combined. The colored lines show emissions from individual fossil fuels. Answer: carbon dioxide
Output: Fossil fuel consumption is a major contributor to global emissions of what gas?