instruction:
Given a scientific passage and an answer, generate a question for the given answer.
question:
Passage: Another scientist, who worked with Becquerel, actually came up with the term radioactivity . The other scientist was the French chemist Marie Curie. She went on to discover the radioactive elements polonium and radium. She won two Nobel Prizes for her discoveries. You can learn more about Marie Curie at this URL: http://nobelprize. org/nobel_prizes/physics/laureates/1903/marie-curie-bio. html. Answer: marie curie
answer:
What french chemist discovered the radioactive elements polonium and radium?

question:
Passage: Secondary pollutants form from chemical reactions that occur when pollution is exposed to sunlight. Answer: sunlight
answer:
Secondary pollutants form from chemical reactions that occur when pollution is exposed to what?

question:
Passage: Figure 14.3 The Tongue The tongue is covered with small bumps, called papillae, which contain taste buds that are sensitive to chemicals in ingested food or drink. Different types of papillae are found in different regions of the tongue. The taste buds contain specialized gustatory receptor cells that respond to chemical stimuli dissolved in the saliva. These receptor cells activate sensory neurons that are part of the facial and glossopharyngeal nerves. LM 1600. (Micrograph provided by the Regents of University of Michigan Medical School ©️ 2012). Answer: papillae
answer:
What is the name of the small bumps that contain taste buds and covers the tongue?