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

Example Input: Passage: Telescopes on Earth all have one big problem: incoming light must pass through the atmosphere. This blocks some wavelengths of radiation. Also, motion in the atmosphere distorts light. You see this when you see stars twinkling in the night sky. Many observatories are built on high mountains. There is less air above the telescope, so there is less interference from the atmosphere. Space telescopes avoid problems from the atmosphere completely since they orbit outside the atmosphere. Answer: the atmosphere
Example Output: Many observatories are built on high mountains to avoid interference from what?

Example Input: Passage: Frogs and toads are adapted for jumping. Salamanders and newts may walk or swim. Caecilians live in the water or soil and are the only amphibians without legs. Answer: caecilians
Example Output: What is the only amphibian without legs?

Example Input: Passage: All living things need energy. Most ecosystems get energy from the Sun. Producers use the energy to make food. They pass some of the energy to consumers. Food chains and food webs show how energy flows through ecosystems. Answer: energy
Example Output:
All living things require what, which most ecosystems obtain from the sun?