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

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
What is the name of the small bumps that contain taste buds and covers the tongue?

Passage: Frozen precipitation may fall as snow, sleet, or freezing rain. Answer: snow, sleet, freezing rain
What three forms does frozen precipitation take?

Passage: Carbon is a nonmetal in group 14 of the periodic table. Like other group 14 elements, carbon has four valence electrons. Valence electrons are the electrons in the outer energy level of an atom that are involved in chemical bonds. The valence electrons of carbon are shown in the electron dot diagram in the Figure below . Answer: valence electrons
What do you call the electrons in the outer energy level of an atom that are involved in chemical bonds?