instruction:
Given a scientific passage and an answer, generate a question for the given answer.
question:
Passage: solid waste that remains after food is digested and is eliminated from the body through the anus. Answer: solid
answer:
What type of waste is eliminated from the body through the anus?

question:
Passage: Electromagnetic waves vary in their wavelengths, frequencies, and energy levels. The full range of electromagnetic waves makes up the electromagnetic spectrum. Answer: electromagnetic spectrum
answer:
What do we call the full range of electromagnetic waves?

question:
Passage: Unsaturated hydrocarbons have at least one double or triple bond between carbon atoms, so the carbon atoms are not bonded to as many hydrogen atoms as possible. In other words, they are unsaturated with hydrogen atoms. Answer: unsaturated
answer:
When carbon atoms are not bonded to as many hydrogen atoms as possible, what kind of hydrocarbon results?